def sumofsquares(n):
    sum = 0
    for x in range(1,n+1):
        sum+=(x*x)
    return sum
def squareofsum(n):
    sum = 0
    for x in range(1,n+1):
        sum+=x
    return (sum*sum)
print(squareofsum(100) - sumofsquares(100))