"""
# Sample Python/Pygame Programs
# Simpson College Computer Science
# http://programarcadegames.com/
# http://simpson.edu/computer-science/

# Vídeo explicativo: http://youtu.be/sxFIxD8Gd3A
"""

texto_cifrado = "Ftup!ft!vob!qsvfcb/!BCD!bcd"

texto_plano= ""
for c in texto_cifrado:
    x = ord(c)
    x = x - 1
    c2 = chr(x)
    texto_plano = texto_plano + c2
print(texto_plano)