A = list(map(int, list(input())))
B = list(map(int, list(input())))

A.reverse()
B.reverse()
n = len(A)
m = len(B)
ANS = [0 for _ in range(max(n, m))]
for i in range(max(n, m)):
    if i < min(n, m):
        ANS[i] = A[i] + B[i]
    else:
        if max(n, m) == n:
            ANS[i] += A[i]
        else:
            ANS[i] += B[i]
    if ANS[i] >= 10:
        if i < max(n, m) - 1:
            ANS[i + 1] += 1
            ANS[i] = ANS[i] % 10
if ANS[-1] >= 10:
    ANS[-1] %= 10
    ANS.append(1)
ANS.reverse()
print(''.join(map(str, ANS)))