Type error in python 3

Question

For i in range(int(input)):
X,y = map(int,input().split())
A = max(x,y)
B = min(x,y)
N = x+y
Print (n+(n(n+1)/2)-((a-b)(a-b+1)/2))

1
1 2
Ans should b. 8
But i am getting a type error
Int not callable

Answer 1

Thannks