#!/usr/bin/env python3

def sols(n):
    """yields int solutions of a**2 - 5 b**2 = 1"""
    a, b = 9, 4
    for i in range(n):
        yield a, b
        a, b = 9*a + 20*b, 4*a + 9*b

N = 12

Ls = []

for a, b in sols(N // 2):
    a0, b0 = 5*b - 2*a, a - 2*b
    m0, n0 = 2*b0 + a0, b0
    m, n   = 2*b  + a,  b
    Ls += [m0**2 + n0**2, m**2 + n**2]

print(sum(Ls))