A = input()
B = input()
D = max(len(A),len(B)) + 1

A = ([0] * (D - len(A)) + list(map(int,list(A))))[::-1]
B = ([0] * (D - len(B)) + list(map(int,list(B))))[::-1]

ans = [0] * D
for i in range(D - 1):
    ans[i] += A[i] + B[i]
    if ans[i] > 9:
        ans[i + 1] += 1
        ans[i] %= 10

a = []
for i in range(D - 1, -1, -1):
    a.append(str(ans[i]))
    
print(int("".join(a)))