#int(input())
#map(int, input().split())
#list(map(int, input().split()))

A = input()
B = input()

la = len(A)
lb = len(B)

if la > lb:
    B = "0" * (la - lb) + B
else:
    A = "0" * (lb - la) + A

ans = []
m = len(A)
t = 0

for i in range(m):
    t, v = divmod(t + int(A[m-i-1]) + int(B[m-i-1]), 10)
    ans.append(v)

if t == 1:
    ans.append(t)

print("".join(str(_) for _ in ans[::-1]))