#输出 偶数
num = 1
while num<=100:
if num%2==0:
print(num)
num += 1
#输出 奇数
num = 1
while num<=100:
if num%2==1:
print(num)
num += 1
#输出 偶数
num = 1
while num<=100:
if num%2==0:
print(num)
num += 1
#输出 奇数
num = 1
while num<=100:
if num%2==1:
print(num)
num += 1