UVA 11650 - Mirror Clock

#include 
int main()
 {
    int t,a,b;
    scanf("%d", &t);
    while(t--)
    {
    scanf("%d:%d", &a, &b);
        a=11-a+(b==0);
        if(a<=0)
        a=a+12;
        if(a!=0)
        b=60-b;
        if(b==60)
        b=0;

        printf("%02d:%02d\n",a,b);
    }
    return 0;
}