def sum_in_Range(l,r):
    def sum_Odd(n): 
        terms = (n + 1)//2
        sum1 = terms * terms 
        return sum1  
     
    return sum_Odd(r) - sum_Odd(l - 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