age = int(input("请输入狗狗年龄: "))
print("狗狗与人类年龄转换")
if age < 0:
    print("请输入大于0的年龄!")
elif age == 1:
    print("约等于人类年龄14岁")
elif age == 2:
    print("约等于人类年龄22岁")
elif age > 2:
    human = 22 + (age -2)*5
    print("约等于人类年龄: ", human)