#include <iostream>
#include <string>
using namespace std;
int main() {
string s;
cin >> s;
int tong = 0;
for (int i = 0; i < s.length(); i++) {
if (s[i] == 'A' || s[i] == 'B' || s[i] == 'C')
tong += 3;
else if (s[i] == 'D' || s[i] == 'E' || s[i] == 'F')
tong += 4;
else if (s[i] == 'G' || s[i] == 'H' || s[i] == 'I')
tong += 5;
else if (s[i] == 'J' || s[i] == 'K' || s[i] == 'L')
tong += 6;
else if (s[i] == 'M' || s[i] == 'N' || s[i] == 'O')
tong += 7;
else if (s[i] == 'P' || s[i] == 'Q' || s[i] == 'R' || s[i] == 'S')
tong += 8;
else if (s[i] == 'T' || s[i] == 'U' || s[i] == 'V')
tong += 9;
else
tong += 10; // W, X, Y, Z
}
cout << tong;
return 0;
}
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