判断语句 + 分支结构

#include<bits/stdc++.h>
using namespace std;
void out(int a,int b,int c){
    if((c-a)%5==0 and (c-b)%7==0) cout<<"Yes";
    else cout<<"No";
}
int main(){
    int a,b,c;
    cin>>a>>b>>c;
    out(a,b,c);
    return 0;
}