题解 | #A+B#

#include <bits/stdc++.h>
using namespace std;

int main(){
	string s1,s2;
	cin>>s1>>s2;
	int len1 = s1.size(),len2 = s2.size();
	int i1=0,i2=0,i;
	bool flag1 = false,flag2 = false;	//默认为正数 
	for(i = 0; i <len1; i++){
		if(s1[i] == '-')
			flag1 = true;
		else if(s1[i] == ',')
			continue;
		else
			i1 = i1*10 + s1[i] - '0';
	}
	for(i = 0; i <len2; i++){
		if(s2[i] == '-')
			flag2 = true;
		else if(s2[i] == ',')
			continue;
		else
			i2 = i2*10 + s2[i] - '0';
	}
//	cout<<i1<<"\t"<<i2;
	if(flag1)
		i1 = -i1;
	if(flag2)
		i2 = -i2;
//	cout<<i1<<"\t"<<i2<<endl;
	cout<<i1+i2;
}