car(1)

#include<stdio.h>
#include<math.h>
int main()
{
    int n,i;
    double u1,v1,a1,s1,t1,u2,u3,u4,v2,v3,v4,t2,t3,t4,a2,a3,a4,s2,s3,s4;

    for(i=1;; i++)
    {scanf("%d",&n);
        if(n==0)
            break;
     else if(n==1)
        {
            scanf("%lf %lf %lf",&u1,&v1,&t1);
            a1=(v1-u1)/t1;
            s1=(u1*t1)+0.5*(a1*t1*t1);
            printf("Case %d: %.3lf %.3lf\n",i,s1,a1);
        }
        else if(n==2)
        {
            scanf("%lf %lf %lf",&u2,&v2,&a2);
            t2=(v2-u2)/a2;
            s2=(u2*t2)+0.5*(a2*t2*t2);
            printf("Case %d: %.3lf %.3lf\n",i,s2,t2);
        }
        else if(n==3)
        {
            scanf("%lf %lf %lf",&u3,&a3,&s3);
            v3=sqrt((u3*u3)+(2*a3*s3));
            t3=(v3-u3)/a3;
            printf("Case %d: %.3lf %.3lf\n",i,v3,t3);
        }
        else if(n==4)
        {
            scanf("%lf %lf %lf",&v4,&a4,&s4);
            u4=sqrt((v4*v4)-(2*a4*s4));
            t4=(v4-u4)/a4;
            printf("Case %d: %.3lf %.3lf\n",i,u4,t4);
        }

    }
    return 0;
}