s=int(input())
def a(s):
g=0
for i in range(1,s+1):
if i%5==0:
g=g+i
else:
continue
print(g)
a(s)

import math
x = eval(input())
if -1<x<1:
result = ((2-2*x)**0.5)
elif x>=1:
result = (math.cos(x)+x**2)/(2.5+math.fabs((x+math.log1p(100))))
elif x<=-1:
result = (math.e)**x
print("f({:.3f})""=""{:.3f}".format(x,result))
最后一题

q

可惜没人了