UVA 579 - Clock Hands

/*************************************
******** Team : BUBT_HIDDEN **********
**************************************
*********** Shipu Ahamed *************
*** http://shipuahamed.blogspot.com **
*************************************/

#include
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#define sc scanf
#define pf printf
#define ll long long
#define pi 2*acos(0.0)

#define ff first
#define se second
#define inf (1<<30)                                              //infinity value
#define pb push_back
#define mod  1000000007
#define ST(v) sort(v.begin(),v.end())
#define cover(a,d) memset(a,d,sizeof(a))
#define input freopen("in.txt","r",stdin)
#define output freopen("out.txt","w",stdout)
#define maxall(v) *max_element(v.begin(),v.end())
#define minall(v) *min_element(v.begin(),v.end())
#define un(v) ST(v), v.erase(unique(v.begin(),v.end()),v.end())

using namespace std;
int main()
{

    double m,h,angle,p,q;
          while(scanf("%lf:%lf",&h,&m)==2)
          {
              if((h==0)&&(m==0))
              break;
             p=h*30+(m/60)*30;
             q=m*6;
             angle=(p-q);
            if(angle<0)
            angle*=-1;
              if (angle>180)
              angle=360-angle;

              printf("%.3lf\n",angle);
          }

    return 0;
}