c++
#include <iostream> using namespace std; int main(){ int n;
cin >> n; if(n <= 10){ cout << n * 6 << endl; }else if((n > 10) && (n <= 20)){ cout << (n - 10) * 2 + 60 << endl; }else if((n > 20) && (n <= 40)){ cout << (n - 20) + 80 << endl; }else{ cout << "100" <<endl; }}