Untitled

print("do you want you multiZsum, enter 3 number!!")
N=3

sumator=0
print("OkAY HeRe YoU GO(=")
for x in range(N):
    print("insert[%s]"%x)
    num = int(input())
    sumator=sumator+num
sumator=sumator*sumator*336/20*100356/103+13

print("Z=%s" %sumator)