import sys
from collections import Counter


def get_message(pinput):
    return ''.join(map(lambda l: Counter(l).most_common()[0][0], zip(*pinput.split('\n'))))


def get_real_message(pinput):
    return ''.join(map(lambda l: Counter(l).most_common()[-1][0], zip(*pinput.split('\n'))))


def run(pinput):
    """Day 6: Signals and Noise"""
    m = get_message(pinput)
    n = get_real_message(pinput)

    print('Corrected message, most common char:    %s' % m)
    print('Corrected message, least common char:   %s' % n)


if __name__ == '__main__':
    try:
        with open(sys.argv[1], 'r') as f:
            run(f.read().strip())
    except IOError:
        print('please provide a file path to puzzle file, example: ./puzzle.txt')
    except IndexError:
        print('please provide a file path to puzzle file, example: ./puzzle.txt')