#!/usr/bin/env python
# -*- coding:utf-8 -*-
s = input("列车时速km/h：")
j = input("需要行驶的距离km：")
h = float(j) / s
print "需要行驶时间为：",h ,"小时"



###python 3###
#!/usr/bin/env python
# -*- coding:utf-8 -*-
#s = input("列车时速km/h：")
#j = input("需要行驶的距离km：")
#h = float(j) / float(s)
#print ("需要行驶时间为：",h ,"小时")
