<tswett> learn sex is a board game which originated in Britain in the 1870s before spreading throughout Europe in the 1890s. Sex was introduced to the rest of the world by a book, "The Complete Guide to Sex", written and published by Taneb in 1932, based on Taneb\'s extensive experience with a wide variety of forms of European sex.

#!/usr/bin/env python
import sys
sys.stdout.write ((lambda s: "".join([(s[i].upper() if i%2!=0 else s[i].lower()) for i in range(len(s)) ]))(open("/dev/stdin").read()))