adventofcode-2022-day-5.js

const [initState, moves] = input().split("\n\n")

const inputLines = initState.split("\n")
const columns = [];
for (let i = inputLines.length - 2; i >= 0; i--) {
    const line = inputLines[i];        
    for (let j = 1, idx = 0; j < line.length; j+=4, idx++) {
        columns.length <= idx && columns.push([]);        
        line[j].trim() != '' && columns[idx].push(line[j]);
    }    
}

const re = /move (\d+) from (\d+) to (\d+)/i;
for(let s of moves.split("\n")) {    
    const [_, size, from, to] = re.exec(s);
    const movingPart = columns[from-1].splice(-size)
    columns[to-1] = columns[to-1].concat(movingPart.reverse());
}

console.log(columns.map(i => i.splice(-1)[0]).join(''));


function input() { return `[T]             [P]     [J]        
[F]     [S]     [T]     [R]     [B]
[V]     [M] [H] [S]     [F]     [R]
[Z]     [P] [Q] [B]     [S] [W] [P]
[C]     [Q] [R] [D] [Z] [N] [H] [Q]
[W] [B] [T] [F] [L] [T] [M] [F] [T]
[S] [R] [Z] [V] [G] [R] [Q] [N] [Z]
[Q] [Q] [B] [D] [J] [W] [H] [R] [J]
 1   2   3   4   5   6   7   8   9 

 move 3 from 8 to 2
 move 3 from 1 to 5
 move 3 from 1 to 4
 move 2 from 7 to 4
 move 3 from 7 to 4
 move 8 from 5 to 7
 move 2 from 1 to 8
 move 7 from 3 to 2
 move 1 from 5 to 2
 move 1 from 6 to 7
 move 2 from 5 to 9
 move 1 from 9 to 1
 move 3 from 9 to 6
 move 5 from 6 to 2
 move 10 from 7 to 2
 move 3 from 8 to 9
 move 7 from 9 to 2
 move 1 from 1 to 2
 move 1 from 9 to 6
 move 1 from 4 to 1
 move 1 from 8 to 2
 move 11 from 4 to 2
 move 1 from 7 to 9
 move 1 from 4 to 6
 move 1 from 9 to 7
 move 1 from 1 to 3
 move 1 from 7 to 5
 move 1 from 4 to 9
 move 1 from 5 to 2
 move 1 from 3 to 8
 move 1 from 6 to 9
 move 1 from 8 to 6
 move 11 from 2 to 1
 move 1 from 6 to 8
 move 7 from 2 to 1
 move 14 from 2 to 7
 move 1 from 6 to 3
 move 1 from 8 to 2
 move 1 from 3 to 9
 move 7 from 7 to 1
 move 1 from 6 to 5
 move 5 from 7 to 6
 move 4 from 2 to 8
 move 3 from 6 to 7
 move 3 from 7 to 8
 move 9 from 1 to 3
 move 8 from 3 to 7
 move 1 from 3 to 1
 move 2 from 2 to 3
 move 1 from 6 to 7
 move 2 from 1 to 7
 move 7 from 1 to 6
 move 1 from 3 to 5
 move 2 from 5 to 3
 move 7 from 6 to 3
 move 9 from 7 to 5
 move 1 from 9 to 1
 move 4 from 8 to 5
 move 7 from 1 to 5
 move 4 from 7 to 2
 move 1 from 7 to 8
 move 1 from 6 to 4
 move 10 from 5 to 3
 move 8 from 5 to 1
 move 2 from 8 to 3
 move 2 from 8 to 9
 move 8 from 2 to 7
 move 4 from 9 to 8
 move 13 from 3 to 7
 move 1 from 5 to 3
 move 6 from 3 to 9
 move 10 from 1 to 9
 move 1 from 3 to 4
 move 6 from 9 to 7
 move 1 from 5 to 8
 move 14 from 7 to 6
 move 14 from 6 to 1
 move 13 from 1 to 8
 move 1 from 1 to 2
 move 9 from 8 to 9
 move 6 from 8 to 5
 move 2 from 4 to 6
 move 1 from 8 to 1
 move 2 from 2 to 1
 move 2 from 8 to 6
 move 3 from 1 to 2
 move 3 from 3 to 9
 move 16 from 9 to 1
 move 3 from 2 to 4
 move 3 from 7 to 2
 move 6 from 5 to 4
 move 5 from 7 to 3
 move 4 from 6 to 1
 move 10 from 2 to 9
 move 13 from 9 to 1
 move 5 from 7 to 2
 move 2 from 4 to 6
 move 1 from 9 to 1
 move 2 from 9 to 5
 move 2 from 6 to 8
 move 2 from 5 to 3
 move 1 from 8 to 3
 move 31 from 1 to 7
 move 2 from 1 to 5
 move 12 from 7 to 3
 move 11 from 3 to 2
 move 1 from 8 to 4
 move 6 from 4 to 5
 move 1 from 3 to 4
 move 8 from 3 to 2
 move 5 from 5 to 6
 move 2 from 6 to 7
 move 4 from 7 to 3
 move 1 from 6 to 9
 move 13 from 7 to 6
 move 13 from 2 to 3
 move 1 from 4 to 8
 move 10 from 2 to 3
 move 3 from 7 to 3
 move 2 from 2 to 1
 move 1 from 8 to 2
 move 2 from 4 to 7
 move 1 from 9 to 2
 move 3 from 7 to 3
 move 1 from 5 to 1
 move 2 from 5 to 2
 move 15 from 6 to 7
 move 4 from 1 to 9
 move 22 from 3 to 9
 move 7 from 3 to 9
 move 4 from 3 to 8
 move 4 from 9 to 4
 move 3 from 2 to 4
 move 5 from 7 to 1
 move 7 from 4 to 7
 move 2 from 8 to 4
 move 1 from 4 to 8
 move 3 from 1 to 5
 move 2 from 1 to 4
 move 1 from 2 to 9
 move 2 from 5 to 7
 move 1 from 5 to 9
 move 3 from 8 to 6
 move 8 from 7 to 1
 move 6 from 7 to 1
 move 10 from 1 to 9
 move 3 from 6 to 2
 move 2 from 1 to 3
 move 2 from 3 to 6
 move 3 from 7 to 4
 move 2 from 7 to 1
 move 1 from 2 to 5
 move 13 from 9 to 5
 move 12 from 9 to 3
 move 6 from 5 to 3
 move 2 from 9 to 1
 move 11 from 9 to 3
 move 1 from 4 to 6
 move 2 from 5 to 3
 move 1 from 1 to 8
 move 24 from 3 to 5
 move 2 from 9 to 3
 move 2 from 2 to 4
 move 1 from 9 to 2
 move 2 from 6 to 8
 move 5 from 3 to 5
 move 2 from 8 to 9
 move 1 from 9 to 8
 move 4 from 1 to 4
 move 1 from 9 to 4
 move 1 from 8 to 4
 move 1 from 8 to 4
 move 7 from 4 to 5
 move 1 from 1 to 8
 move 1 from 6 to 5
 move 35 from 5 to 4
 move 18 from 4 to 3
 move 6 from 4 to 3
 move 8 from 5 to 8
 move 8 from 8 to 1
 move 2 from 4 to 9
 move 23 from 3 to 1
 move 1 from 8 to 5
 move 1 from 9 to 1
 move 1 from 5 to 1
 move 1 from 9 to 4
 move 11 from 1 to 2
 move 16 from 4 to 5
 move 3 from 3 to 5
 move 9 from 2 to 5
 move 1 from 4 to 1
 move 2 from 2 to 6
 move 1 from 2 to 9
 move 1 from 6 to 2
 move 1 from 3 to 5
 move 1 from 3 to 9
 move 1 from 2 to 9
 move 23 from 1 to 5
 move 1 from 6 to 9
 move 1 from 9 to 8
 move 27 from 5 to 1
 move 1 from 9 to 3
 move 18 from 5 to 8
 move 6 from 5 to 7
 move 1 from 5 to 6
 move 1 from 9 to 8
 move 12 from 8 to 3
 move 1 from 1 to 4
 move 6 from 7 to 8
 move 1 from 6 to 3
 move 1 from 4 to 2
 move 2 from 1 to 8
 move 1 from 2 to 9
 move 8 from 3 to 2
 move 2 from 9 to 7
 move 5 from 2 to 7
 move 7 from 7 to 2
 move 2 from 8 to 2
 move 3 from 1 to 9
 move 5 from 1 to 2
 move 3 from 9 to 8
 move 3 from 8 to 7
 move 5 from 2 to 5
 move 2 from 7 to 6
 move 12 from 8 to 9
 move 12 from 1 to 4
 move 9 from 9 to 3
 move 4 from 5 to 8
 move 12 from 3 to 8
 move 1 from 7 to 9
 move 3 from 9 to 2
 move 1 from 4 to 7
 move 3 from 1 to 7
 move 7 from 4 to 6
 move 3 from 6 to 2
 move 2 from 7 to 9
 move 18 from 8 to 1
 move 2 from 4 to 7
 move 1 from 2 to 8
 move 1 from 8 to 2
 move 10 from 2 to 3
 move 3 from 9 to 8
 move 2 from 6 to 7
 move 13 from 3 to 1
 move 2 from 8 to 9
 move 28 from 1 to 8
 move 1 from 5 to 2
 move 1 from 4 to 3
 move 4 from 7 to 6
 move 5 from 6 to 7
 move 7 from 2 to 6
 move 1 from 9 to 6
 move 2 from 2 to 4
 move 1 from 9 to 1
 move 4 from 1 to 2
 move 3 from 2 to 5
 move 3 from 4 to 9
 move 3 from 5 to 7
 move 1 from 1 to 4
 move 6 from 7 to 6
 move 1 from 2 to 6
 move 1 from 4 to 1
 move 1 from 1 to 8
 move 3 from 9 to 4
 move 18 from 6 to 3
 move 4 from 3 to 6
 move 1 from 7 to 9
 move 1 from 6 to 9
 move 2 from 3 to 6
 move 1 from 9 to 6
 move 1 from 9 to 2
 move 6 from 6 to 8
 move 3 from 4 to 7
 move 2 from 7 to 2
 move 35 from 8 to 7
 move 3 from 3 to 1
 move 26 from 7 to 2
 move 10 from 3 to 9
 move 6 from 9 to 4
 move 3 from 1 to 2
 move 1 from 4 to 3
 move 4 from 4 to 1
 move 1 from 3 to 6
 move 1 from 8 to 3
 move 1 from 6 to 2
 move 1 from 3 to 2
 move 13 from 7 to 3
 move 3 from 1 to 4
 move 4 from 3 to 1
 move 3 from 1 to 9
 move 2 from 1 to 9
 move 10 from 2 to 9
 move 19 from 2 to 9
 move 6 from 3 to 9
 move 2 from 3 to 4
 move 2 from 2 to 6
 move 17 from 9 to 8
 move 1 from 2 to 8
 move 2 from 9 to 3
 move 2 from 6 to 7
 move 8 from 9 to 3
 move 5 from 4 to 5
 move 14 from 9 to 4
 move 1 from 2 to 3
 move 1 from 7 to 2
 move 2 from 9 to 3
 move 1 from 2 to 7
 move 5 from 5 to 1
 move 1 from 2 to 1
 move 1 from 3 to 1
 move 1 from 9 to 7
 move 3 from 7 to 2
 move 3 from 3 to 7
 move 1 from 2 to 4
 move 1 from 3 to 8
 move 1 from 2 to 4
 move 4 from 3 to 4
 move 16 from 8 to 9
 move 3 from 1 to 4
 move 21 from 4 to 6
 move 1 from 7 to 2
 move 1 from 8 to 2
 move 1 from 1 to 3
 move 6 from 6 to 7
 move 3 from 1 to 9
 move 3 from 7 to 3
 move 1 from 4 to 6
 move 1 from 4 to 7
 move 2 from 2 to 6
 move 1 from 8 to 6
 move 13 from 6 to 7
 move 1 from 2 to 3
 move 15 from 9 to 8
 move 6 from 6 to 3
 move 13 from 8 to 3
 move 4 from 9 to 4
 move 5 from 4 to 8
 move 19 from 3 to 9
 move 3 from 3 to 1
 move 5 from 8 to 9
 move 17 from 9 to 7
 move 1 from 1 to 8
 move 4 from 9 to 6
 move 3 from 3 to 8
 move 1 from 1 to 2
 move 3 from 3 to 1
 move 36 from 7 to 6
 move 1 from 1 to 2
 move 7 from 8 to 2
 move 24 from 6 to 5
 move 2 from 6 to 7
 move 1 from 3 to 2
 move 4 from 6 to 8
 move 19 from 5 to 1
 move 8 from 6 to 4
 move 7 from 2 to 5
 move 3 from 2 to 8
 move 15 from 1 to 6
 move 2 from 9 to 5
 move 2 from 7 to 8
 move 3 from 4 to 1
 move 4 from 5 to 6
 move 1 from 9 to 7
 move 1 from 8 to 3
 move 3 from 6 to 1
 move 2 from 4 to 7
 move 13 from 1 to 8
 move 1 from 3 to 7
 move 1 from 4 to 5
 move 19 from 8 to 6
 move 1 from 7 to 3
 move 8 from 5 to 8
 move 1 from 6 to 8
 move 3 from 5 to 9
 move 1 from 6 to 4
 move 3 from 4 to 7
 move 1 from 3 to 9
 move 4 from 7 to 9
 move 20 from 6 to 3
 move 1 from 8 to 4
 move 2 from 9 to 4
 move 2 from 9 to 2
 move 2 from 9 to 3
 move 13 from 6 to 9
 move 9 from 9 to 8
 move 2 from 6 to 3
 move 8 from 8 to 2
 move 2 from 7 to 3
 move 5 from 9 to 3
 move 12 from 3 to 5
 move 1 from 4 to 7
 move 8 from 2 to 4
 move 8 from 4 to 7
 move 2 from 2 to 6
 move 2 from 8 to 9
 move 2 from 6 to 8
 move 2 from 9 to 6
 move 2 from 6 to 9
 move 2 from 4 to 8
 move 2 from 9 to 2
 move 6 from 3 to 1
 move 2 from 2 to 9
 move 3 from 9 to 3
 move 8 from 7 to 2
 move 6 from 1 to 2
 move 8 from 3 to 8
 move 1 from 7 to 3
 move 5 from 3 to 8
 move 6 from 2 to 7
 move 3 from 7 to 6
 move 2 from 7 to 9
 move 1 from 7 to 8
 move 8 from 5 to 7
 move 7 from 2 to 1
 move 7 from 1 to 6
 move 7 from 7 to 9
 move 1 from 7 to 6
 move 2 from 3 to 9
 move 2 from 8 to 5
 move 25 from 8 to 5
 move 5 from 5 to 1
 move 1 from 6 to 4
 move 17 from 5 to 4
 move 5 from 5 to 4
 move 23 from 4 to 7
 move 2 from 5 to 2
 move 4 from 6 to 3
 move 6 from 3 to 7
 move 1 from 5 to 2
 move 1 from 1 to 7
 move 2 from 2 to 8
 move 2 from 2 to 9
 move 1 from 5 to 7
 move 4 from 1 to 6
 move 2 from 8 to 3
 move 2 from 9 to 4
 move 1 from 4 to 8
 move 7 from 9 to 1
 move 2 from 3 to 5
 move 28 from 7 to 4
 move 4 from 6 to 2
 move 2 from 6 to 2
 move 3 from 7 to 4
 move 2 from 5 to 6
 move 4 from 2 to 6
 move 9 from 6 to 5
 move 4 from 1 to 7
 move 1 from 6 to 2
 move 3 from 2 to 3
 move 1 from 8 to 6
 move 1 from 7 to 4
 move 2 from 3 to 4
 move 1 from 7 to 4
 move 2 from 1 to 6
 move 1 from 7 to 9
 move 1 from 7 to 9
 move 1 from 6 to 2
 move 7 from 5 to 8
 move 1 from 3 to 9
 move 1 from 5 to 2
 move 7 from 8 to 7
 move 4 from 4 to 8
 move 2 from 8 to 4
 move 2 from 2 to 7
 move 1 from 1 to 7
 move 1 from 5 to 6
 move 32 from 4 to 7
 move 2 from 6 to 5
 move 2 from 8 to 2
 move 1 from 2 to 1
 move 2 from 5 to 4
 move 1 from 2 to 5
 move 1 from 1 to 4
 move 4 from 4 to 3
 move 1 from 6 to 4
 move 1 from 5 to 4
 move 5 from 9 to 1
 move 4 from 3 to 5
 move 3 from 1 to 6
 move 2 from 9 to 5
 move 2 from 1 to 3
 move 15 from 7 to 1
 move 5 from 5 to 3
 move 1 from 5 to 2
 move 3 from 4 to 5
 move 2 from 5 to 9
 move 3 from 3 to 6
 move 3 from 3 to 4
 move 1 from 3 to 8
 move 1 from 9 to 3
 move 2 from 4 to 9
 move 1 from 5 to 3
 move 2 from 9 to 6
 move 1 from 8 to 1
 move 1 from 3 to 2
 move 1 from 4 to 9
 move 2 from 9 to 3
 move 9 from 1 to 3
 move 5 from 3 to 4
 move 2 from 1 to 3
 move 4 from 1 to 5
 move 1 from 2 to 8
 move 3 from 4 to 9`;
}