#include<stdio.h>
#include<math.h>
int main ()
{
int t,s,m,h,y;
double f;
scanf ("%d",&t);
while (t--)
{
scanf ("%d%d%d",&h,&m,&s);
h=h%12;
f=fabs((h+m/60.0+s/3600.0)*5*6-(m+s/60.0)*6);
printf ("%d\n",f>180?(int)(360-f):(int)f);//这样小数点后的数不会进位
}
return 0;
}
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