#include <iostream>
#include <cstring>
using namespace std;
int main() {
string workers;
int fr[10000];
int n;
int x = 0,y = 0;
cin >> n;
// getline(cin, workers[0]);
for (int i = 0; i < n; ++i) {
cin >> workers;
//}
// for (int i = 0; i < n; ++i) {
//int length = workers[i].size();
sscanf(workers.c_str(), "%d %d",&x,&y);
cout << x <<" "<< y <<"\n";
}
return 0;
}
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