### Code ###
'''
Project Euler Problem 001
'''

def sumofap(N, A, D):
    """
    The sum function to add terms of an AP.
    """
    return ((N / 2)*(2 * A + (N - 1) * D))

x = sumofap(333.0, 3.0, 3.0)
y = sumofap(199.0, 5.0, 5.0)
z = sumofap(66.0, 15.0, 15.0)
print "The required answer is ", (x + y - z)

### Report ###
C:  5:sumofap: Invalid name "N" (should match [a-z_][a-z0-9_]{2,30}$)
C:  5:sumofap: Invalid name "A" (should match [a-z_][a-z0-9_]{2,30}$)
C:  5:sumofap: Invalid name "D" (should match [a-z_][a-z0-9_]{2,30}$)
C:  5:sumofap: Invalid name "N" (should match [a-z_][a-z0-9_]{2,30}$)
C:  5:sumofap: Invalid name "A" (should match [a-z_][a-z0-9_]{2,30}$)
C:  5:sumofap: Invalid name "D" (should match [a-z_][a-z0-9_]{2,30}$)
C: 11: Invalid name "x" (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$)
C: 12: Invalid name "y" (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$)
C: 13: Invalid name "z" (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$)