N = 5
a = []
def prr():
    for i in range(N):
        print(a[i],end = '')
    print()
    
for i in range(N):
    a.append(0)
prr()

i = N-1
while True:
    if a[i] == N-1:
        if i == 0:
            break
        else:
            i -= 1
    else:
        a[i] += 1
        if i < (N-1):
            i += 1
            a[i] = 0
        prr()