#include<iostream>
using namespace std;
int main(){
	int x,n,z,a=0;
	cin>>x>>n;
	if(x+n<=7){
		z=x+n;
	cout<<z; 
	}
	
	else{
		for(z;z-7*a>7;a=a+1){
			z=z-7*a;
			cout<<z;
	
	} 
}
return 0;
}