from numpy import*
nimpar = array(eval(input("Alunos: ")))
turmas = 0
nimpar1 = nimpar1 % 2 == 1
for i in range(size(nimpar)):
	if( nimpar[i] == nimpar1):
		result = result + 1
result = zeros(turmas , dtype = int)	
print(result)



		
		
		

		
		