# Cadenas para formar los numeros
unid = [
    "cero",
    "uno",
    "dos",
    "tres",
    "cuatro",
    "cinco",
    "seis",
    "siete",
    "ocho",
    "nueve",
]
edec = ["diez", "once", "doce", "trece", "catorce", "quince"]
dece = [
    "diez",
    "veinte",
    "treinta",
    "cuarenta",
    "cincuenta",
    "sesenta",
    "setenta",
    "ochenta",
    "noventa",
]
cent = [
    "ciento",
    "doscientos",
    "trescientos",
    "cuatrocientos",
    "quinientos",
    "seiscientos",
    "sietecientos",
    "ochocientos",
    "novecientos",
]


# Convierte de 1 a 999
def convBas(n):
    xc = ""
    xn = n
    if xn > 100 and xn < 1000:
        xc = xc + cent[int(xn / 100) - 1]
        xc = xc + " "
        xn = xn - (100 * int(xn / 100))
    if xn == 100:
        xc = xc + "cien"
    if xn > 15 and xn < 100:
        xc = xc + dece[int(xn / 10) - 1]
        if (xn % 10) != 0:
            xc = xc + " y "
        xn = xn - (10 * int(xn / 10))
    if xn >= 10 and xn < 16:
        xc = xc + edec[xn - 10]
    if xn < 10:
        if xn == 0 and n != 0:
            xc = xc + " "
        else:
            if xn != 0:
                xc = xc + unid[xn]
    return xc


# Convierte el numero en su expresion escrita
def conv(n):
    xc = ""
    r = 0
    xn = n
    if xn == 1e6:
        xc = xc + "un millon "
        return xc
    if xn >= 2e3 and xn < 1e6:
        r = int(xn / 1e3)
        xc = xc + convBas(r)
        xc = xc + " mil "
        xn = int(xn - int(1e3 * r))
    if xn > 1e3 and xn < 2e3:
        if int(xn / 1e3) == 1:
            xc = xc + "un"
        else:
            xc = xc + unid[int(xn / 1e3)]
        xc = xc + " mil "
        xn = int(xn - (1e3 * (int(xn / 1e3))))
    if xn == 1e3:
        xc = xc + "un mil "
        return xc
    if xn >= 0 and xn < 1e3:
        xc = xc + convBas(xn)
    if xn == 0 and n == 0:
        xc = xc + unid[xn]
    return xc


"""
Prueba de las clases
"""
if __name__ == "__main__":
    for i in range(1000001):
        xc = ""
        xc = conv(i)
        print(str(i) + " --> " + xc)