2433.cpp

这是哈尔滨工业大学acmOJ的源代码

/* This Code is Submitted by wywcgs for Problem 2433 on 2007-01-01 at 17:44:03 */
#include <cstdio>

int main()
{
	int h, m;
	
	while(scanf("%d:%d", &h, &m) != EOF) {
		int k = (60*h+10)/11;
		if(k <= m) h++;
		if(h == 11) printf("00:00\n00:05\n");
		else printf("%02d:%02d\n%02d:%02d\n", h, h*5, h, (h+1)*5);
	}
	
	return 0;
}