题目描述
You are given a name of a month. Output the season of the year to which it belongs (based on Northern hemisphere).
Input
The input consists of a single string containing the name of one of the twelve months (January, February, March, April, May, June, July, August, September, October, November or December). The string is capitalized as given here.
Output
Output a single string — the season of the year to which the given month belongs (winter, spring, summer or autumn). The name of the season should be in lowercase.
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分
样例输入
April
样例输出
spring
提示
Assume that winter is December through February, spring is March through May, summer is June through August and autumn is September through November.