a = [11, 9, 20, 32, 15, 2]
total = 0
for i in range(len(a)):
    if a[i] % 2 == 0:
        total += 1
print(total)

# a = [11, 9, 20, 32, 15, 2]
# i = 0
# total = 0
# while i < len(a):
#     if a[i] % 2 == 0:
#         total +=1
#     i +=1
# print(total)