#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<cmath>
using namespace std;
int square ( int x ) {
return x * x ;
}
int main()
{
int i = 0;
while (i<100) {
cout << i << '\t' << square(i) << '\n';
++i ;
}
}
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