corruption.py

import numpy as np

n, syn, ack = 240, "SYN", "ACK"
k = n//4
idx = sorted(zip(np.random.randint(0, n, k), np.random.choice([syn, ack], k)))

corruption = []
for i in range(n):
    
    while idx and idx[0][0] <= i:
        corruption.append(list(idx.pop(0)[1]))
        
        
    new_buf = []
    for msg in corruption[:]:|
        print(msg.pop(0), end="")
        if msg:
            new_buf.append(msg)
        else:
            print("|", end="")
            
    corruption = new_buf