i=1
s=1
while(i<6):
i=i+2
s=s*2
print(s)
x=-1
y=20
if x<0:
x=y+3
else:
y=y-3
print(x-y,y+x)
n=9
s=1
k=1
while(k<n):
k=k+1
s=s+1/(k*(k+1))
print(s)
p=0.8
s=0
n=1
while(s<p):
s=s+1/(2**n)
n=n+1
print(n)
number1 = input("我可以帮你求出两个数的最小公倍数，请输入第一个数字。\n")
number2 = input("请输入第二个数字。\n")
number1 = float(number1)
number2 = float(number2)
if number1 > number2:
big = number1
small = number2
else:
big = number2
small = number1
while small != 0:
big %= small
if small > big:
(small,big)=(big,small)
yue = big
print("最大公因数是",yue)
