#!/usr/bin/python3

def synarthsh(tx):
	if (len(tx)!=18):
		exit(1)
	print(tx[:6])
	print(tx[-5:])
	print(tx[2::2])
	print(tx[-2::-1])
	print(tx[::2] + tx[1::2])

def main():
	synarthsh("AppliedMathematics")

if __name__=="__main__":
	main()