用来处理 long long 处理不了的整数但是数据范围又在128位以内的
#include <bits/stdc++.h>
using namespace std;
inline __int128 read(){
__int128 x = 0, f = 1;
char ch = getchar();
while(ch < '0' || ch > '9'){
if(ch == '-')
f = -1;
ch = getchar();
}
while(ch >= '0' && ch <= '9'){
x = x * 10 + ch - '0';
ch = getchar();
}
return x * f;
}
inline void print(__int128 x){
if(x < 0){
putchar('-');
x = -x;
}
if(x > 9)
print(x / 10);
putchar(x % 10 + '0');
}
int main(void){
__int128 a = read();
__int128 b = read();
print(a + b);
cout << endl;
return 0;
}