#!/usr/bin/env python3.1

import multiprocessing

def Prueba(d):
    a = 0
    for n in range(d):
        a += n

    return a

c = range(10000,13000)
res = []

p = multiprocessing.Pool()
res = p.map(Prueba, c)

#for d in c:
#    res.append(Prueba(d))