#!python
import sys, getopt

def reverse_text(x):
      return x[::-1]

if len(sys.argv) ==2 and sys.argv[1] == "-h":
    print("usage: rrver -h shows this help")
    print("usage: rrver string to reverse here")
    print("usage: rrver to start interactive program where every")
    print("newline will be reversed. Exit with ctrl-c.")
    sys.exit()
elif len(sys.argv) > 1:
    print(reverse_text(''.join(sys.argv[1:])))
    sys.exit()
else:
    try:
        while True:
            text=raw_input()
            print(reverse_text(text))
    except KeyboardInterrupt:
        sys.exit()


