Series32. Integers K, N and K sets of integers with N elements in each set are given. For each set, output the sequence number of its first element equal to 2, or the number 0 if there are no 2-s in this set.

Solution in Python 3:

import random

K = random.randrange(1,7)
N = random.randrange(1,7)

print("K = ",K)
print("N = ",N)

for i in range(0,K):
    flag = True
    position = -1
    for j in range(0,N):
        x = random.randrange(0,5)
        print(x,end="; ")
        if flag and x == 2:
            flag = False
            position = j
    print()
    print("Position of first 2:",position)
    print()