#include<bits/stdc++.h> using namespace std; int main() { char a[5],b[5]={'D','C','B','A','D'}; int score=0; for(int i=0;i<5;i++) { cin>>a[i]; } for(int i=0;i<5;i++) { if(a[i]==b[i]) { score+=30; } } cout<<score; return 0; }