#include <iostream>
using namespace std;
int main() {
int inc=5;
while(inc>0)
{int x,s=0;
cin>>x;
while(x)
{
int u=x%10;
s=s+u;
x=x/10;
}
if(s==7)
{
cout<<"good"<<" ";
break;
}
else
{
cout<<"wrong"<<" ";
}
inc--;
}
return 0;
}
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