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#include <iostream>
using namespace std;
int main (){
    string s;
    cin>>s;
    int cnt1=0;
    int cnt2=0;
    int len=s.length();
    for(int i=0;i<len;i++){
         if((s[i]>='a' && s[i]<='z') ||     (s[i]>='A' && s[i]<='Z')) cnt1++;
         if(s[i]>='0' && s[i]<='9') cnt2++;
}
    cout<<"Letters="    <<cnt1<<endl;
    cout<<"Digits="<<cnt2;
    return 0;
}