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评论“你干嘛”免费领取

#include <iostream>
using namespace std;
int main(){
	long long n,m,x,kun = 0;
    cin >> n >> m >> x;
    if (n - m < 0){
        cout << "WA";
    }else{
        cout << n - m + x;
    }
	return 0;
}