View Code of Problem 56

#include<stdio.h>
#include<math.h>
main()
{
	int i,a[2],b[2],c[2];
	for(i=0;i<2;i++)
	{
		scanf("%d:%d:%d",&a[i],&b[i],&c[i]);
	}
	printf("%d:%.2d:%.2d",abs(a[0]-a[1]),abs(b[0]-b[1]),abs(c[0]-c[1]));
}