n = int(input())
for i in range(1, 2 * n, 1):
    for k in range(2 * i, 1, 1):
        print(k, end='')
    print()

e04d1f785b4e4b9efef0678707d51476450e85b0
<mask token>

<mask token>
for i in range(1, 2 * n, 1):
    for k in range(2 * i, 1, 1):
        print(k, end='')
    print()

n = int(input())
for i in range(1, 2 * n, 1):
    for k in range(2 * i, 1, 1):
        print(k, end='')
    print()
