def count_Intgral_Points(x1,y1,x2,y2):
     
    return ((y2 - y1 - 1) * (x2 - x1 - 1)) 
def is_not_prime(n):
    import math
    
    result = False
    for i in range(2,int(math.sqrt(n)) + 1):
        if n % i == 0:
            result = True
    return result