语法错误:Codeskulptor中的错误令牌“”

我想知道我的代码有什么问题吗?我正在使用python 3.0

import random
random.seed(1,10)
a = random.randint (1,10)
b = random.randint (1,10)
print("What is: " + str(a) + " X " + str(b) + "?")  
ans = int(input("Your answer: "))  
if (a * b == ans):  
print ("Correct!")  
else:  
print ("Incorrect!")