from __future__ import print_function

class A:
    def __init__(self):
        for i in range(10):
            print(i, end=' ')

for j in range(4):
    A()
    print()

0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9