#!python

# #define ONE 1
# #define ZERO 0
# #define UN 1
if __name__ == '__main__':
# #if ZERO
    print "a"
# #elif ZERO
    print "b"
# #elif ONE
    print "c"
# #elif ONE
    print "d"
# #else
    print "e"
# #endif
    print "bye"

