a = [0] * 10
M = int(input('M: ')) + 1
N = int(input('N: ')) + 1

for i in range(1, M):
    for j in range(1, N):
        a[i] = i * 10

for i in range(1, M):
    for j in range(1, N):
        print(' : ', a[i], end='')
    print(' :')