#include <bits/stdc++.h> using namespace std; int main() { int t; cin>>t; while(t--) { long long x; cin>>x; cout<<x<<" "<<0<<"\n"; } return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int t; cin>>t; while(t--) { long long x; cin>>x; cout<<x<<" "<<0<<"\n"; } return 0; }