Alpha to WASD

"""
Usage:
    Type something in (using only latin characters) and then press enter to
    convert it to base 4 into WASD

By: Jaxrtech (with the power of Google)
"""

def base10toN(num, base):
    """Change ``num'' to given base
    Upto base 36 is supported."""

    converted_string, modstring = "", ""
    currentnum = num
    if not 1 < base < 37:
        raise ValueError("base must be between 2 and 36")
    if not num:
        return '0'
    while currentnum:
        mod = currentnum % base
        currentnum = currentnum // base
        converted_string = chr(48 + mod + 7*(mod > 10)) + converted_string
    return converted_string

class Offsets:
    CAPS_ALPHA = ord('A')

def base_map(base_point, mapping):
    """
    Returns a string from a base number point converted
    with a mapping.

    >>> base_map('13', ['W', 'A', 'S', 'D'])
    'WS'
    """
    return ''.join(mapping[int(c)-1] for c in base_point)

WASD_MAPPING = ['W', 'A', 'S', 'D']
BASE = 4
SHIFT_ORIGIN = Offsets.CAPS_ALPHA

message = raw_input().upper().split(' ')
ascii = [map(ord, s) for s in message]
shifted = [map(lambda x: x - SHIFT_ORIGIN, s) for s in ascii]
base = [map(lambda x: base10toN(x, BASE), s) for s in shifted]
base_map = [map(lambda x: base_map(x, WASD_MAPPING), s) for s in base]

print base_map