在此输入标题

众所周知，__int128的范围是170141183460469231731687303715884105728~170141183460469231731687303715884105727

#include<iostream>
using namespace std;
#define int __int128
inline void read(int &n) {
	int 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<<1)+(x<<3)+(ch^48);
		ch=getchar(); }
	n=x*f; }
inline void print(int n) {
	if(n<0) {
		putchar('-');
		n*=-1; }
	if(n>9) print(n/10);
	putchar(n % 10 + '0'); }
#undef int
int main() {
	__int128 a,b;
	read(a);
	read(b);
	print(a+b);
	return 0; }