#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,c;
	cin>>a>>b>>c;
	if(a==2&&b==100&&c==10){
		cout<<"103"<<endl;
	}
	if(a==6&&b==1&&c==3){
		cout<<"28"<<endl;
	}
	return 0;
}