#include<bits/stdc++.h> using namespace std; int n,m,l; int main(){ cin>>n>>m; l = 10+n; for(int i=n;i<=l;i++){ if(i%4==0&&i%100!=0||i%400 ==0){ m +=m*0.3; }else{ m +=m*0.2; } } cout <<m; return 0; }