#include <iostream>
#include <math.h>
#include <algorithm>
using namespace std;
int main ()
{
long long t;
cin>>t;
long long x1, x2, x3;
long long a[3];
for (long long i=1; i<=t; i++)
{
cin>>x1>>x2>>x3;
a[0]=abs(x1-x2);
a[1]=abs(x1-x3);
a[2]=abs(x2-x3);
sort (a, a+3);
cout<<a[0]+a[1]<<endl;
}
return 0;
}
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