import sys
input=sys.stdin.readline
a,b=map(int, input().split())
a=a//100 + (a//10%10)*10 +(a%10)*100
b=b//100 + (b//10%10)*10 +(b%10)*100
print(max(a, b))
A,B=input().split()
A=int(A[::-1])
B=int(B[::-1])
if A>B:
print(A)
else:
print(B)