Hi

#include<iostream>
using namespace std;
int main(){
int a,b,c;
cin>>a>>b>>c;
if(a+c>b&&a+b>c&&b+c>a&&a!=0&&b!=0&&c!=0){
if(ab&&bc){
cout<<"aaa";
}else if(ab||bc||a==c){
cout<<"aab";
}else{
cout<<"abc";
}
}else{
cout<<"error";
}
return 0;
}