import sys

def list_conect(l):
    ans = ""
    for l_i in l:
        ans += l_i
    return ans

S = "0000000000"
l = list(S)
print(list_conect(l))
old_ck, rock = map(str, input().split())
old_ck = int(old_ck)
print(list_conect(l))
i = 0

while True:
    ck, rock = map(str, input().split())
    ck = int(ck)
    if ck == 10:
        sys.exit()
    if old_ck == ck:
        M = int(l[i])
        M += 1
        l[i] = str(l[i])
    elif old_ck < ck:
        i += 1
    else:
        M = int(l[i])
        M -= 1
        l[i] = str(l[i])
        i += 1
    old_ck = ck
    print(list_conect(l))