```
s,v = map(int,input().split(' '))
t = s/v +10
htime = int(t//60+1)
mtime = int(60-t%60)
if htime>8:
h0=htime-8
h1=24-h0
else:
h1=8-htime
if h1 < 10:
if mtime < 10:
print("0%d:0%d" % (h1,mtime))
else:
print("0%d:%d" % (h1,mtime))
else:
if b < 10:
print("%d:0%d" % (h1,mtime))
else:
print("%d:%d" % (h1,mtime))
```
by congzuoce337 @ 2023-01-25 12:17:11
@[congzuoce337](/user/931317) 这个就是我的原代码，第一次发帖，，，前面没发好
by congzuoce337 @ 2023-01-25 12:18:37
@[congzuoce337](/user/931317) 我在洛谷在线IDE中测试,没有问题啊
by jzhjzh123 @ 2023-01-25 13:35:41
@[jzhjzh123](/user/905369) 不知道，就是十个测试点后三个都是RE没过
by congzuoce337 @ 2023-01-26 14:33:10