Bit-wise Left Shift (<<) operator example in C

ls.c

#include <stdio.h>
#include <stdlib.h>

// getting the binary representation - 16 bit format
void showbits(int number) {
  int i, k, andmask;
  for(i = 15; i >= 0; i--) {
    andmask = 1 << i;
    k = andmask & number;
    k == 0? printf("0") : printf("1");
  }
}

int main() {
  // starting values
  int input = 5225;
  int k;
  // iterating a J variable
  for(int j = 0; j < 3; j++) {
    // performing right-shift to the J variable once 0-1-2 times
    k = input << j;
    printf("\n Binary rep of number of %d is: " , input);
    showbits(k); // binary
  }
  printf("\n");
  return 0;
}