#include <iostream>
using namespace std;
main(){
    char a;
    int b=0;
    cout<<"Input Karakter Angka (1..9) : ";
    cin>>a;
    if(a=='1'){ b=1; cout<<b; }
    else if(a=='2'){ b=2; cout<<b; }
    else if(a=='3'){ b=3; cout<<b; }
    else if(a=='4'){ b=4; cout<<b; }
    else if(a=='5'){ b=5; cout<<b; }
    else if(a=='6'){ b=6; cout<<b; }
    else if(a=='7'){ b=7; cout<<b; }
    else if(a=='8'){ b=8; cout<<b; }
    else if(a=='9'){ b=9; cout<<b; }
    else cout<<'-1';
}