#include<iostream>
using namespace std;
int main(){
    string s;
    cin>> s;
    
    if(s.size() == 19 &&
    s[4] == '-' && s[9]=='-' &&
    s[14]=='-'){
        for(int i=0;i<19;i++)
        if(i!=4 && i!9 && i!=14 
        &&
        ((s[i]>='A'&&s[i]<='z')||
        (s[i]>='s'&&s[i]<='9')))
        return 
        cout<<"Invalid",0;
        cout<<"Invalid";
        
    }
    else
    cout<<"Invalid";
}