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Cod sursa(job #902741)
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("euclid2.in");
ofstream fout("euclid2.out");
int cmmdc(int a, int b){
if((!a) || (!b)) return (a + b);
if(a>b) return cmmdc(a%b, b);
return cmmdc(a, b%a);
}
int main()
{
int n, a, b;
fin>>n;
for(; n; n--){
fin>>a>>b;
fout<<cmmdc(a, b)<<'\n';
}
return 0;
}