s = input()


def edge_swap(instr,n):
	if n == 1:
		outstr = instr
	elif  n == 2:
		outstr = [instr[0],instr[0][::-1]]
	else:
		a, b, c, d = instr[0][0], instr[0][-1], instr[0][1:], instr[0][:-1]
		outstr = [ a+i for i in edge_swap([c],n-1) ] + [ b+i for i in edge_swap([d],n-1) ]

	return outstr

	
	

print(len(list(set(edge_swap([s],len(s))))))