<wib_jonas> slashlearn hand injuries//Hand injuries are surprisingly common among webcomic writers, see eg. http://questionablecontent.net/view.php?comic=2314 http://www.giantitp.com/comics/oots0864.html or https://www.irregularwebcomic.net/news.php?date=2020-05-27

#!/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()))