a053. Sagit's 計分程式

#include 



using namespace std;



int main()

{

    int num;

    while(cin>>num)

    {

                     if(num<=10)  cout<                     else if(num<=20)  cout<<(num-10)*2+60<                     else if(num<=40)  cout<<(num-20)*1+80<                     else cout<<100<    }

    return 0;

}