nested_loops.py

for column in range(3):
    print(str(column) + '---> ', end='')
    for cell in range(5):
            print('[' + str(cell) + '] ', end='')
    print('~~~')

# Результат:
'''
0---> [0] [1] [2] [3] [4] ~~~
1---> [0] [1] [2] [3] [4] ~~~
2---> [0] [1] [2] [3] [4] ~~~
'''