# -*- coding: utf-8 -*- 


def zip_alignments(al0lang0, al0lang1, al1lang0, al1lang1):
    if al0lang0 == al1lang0:
        return al0lang0, al0lang1, al1lang1
    else:
        new0 = {}
        new1 = {}
        new2 = {}
        k, k0, k1 = 0, 0, 0
        while k0 < len(al0lang0) and k1 < len(al1lang0):
            if al0lang0[k0] == al1lang0[k0]:
                new0.update({k: al0lang0[k0]})
                new1.update({k: al0lang1[k0]})
                new2.update({k: al1lang1[k1]})
                k0 += 1
                k1 += 1
            elif al0lang0[k0] == +al1lang0[k1] + ' ' + al1lang0.get(k1 + 1, ''):
                new0.update({k: al0lang0[k0]})
                new1.update({k: al0lang1[k0]})
                new2.update({k: al1lang1[k1] + ' ' + al1lang0.get(k1 + 1, '')})
                k0 += 1
                k1 += 2
            elif al0lang0[k0] + al0lang0.get(k0 + 1, '') == al1lang0[k1]:
                new0.update({k: al0lang0[k0] + ' ' + al0lang0.get(k0 + 1, '')})
                new1.update({k: al0lang1[k0] + ' ' + al0lang1.get(k0 + 1, '')})
                new2.update({k: al1lang1[k1]})
                k0 += 2
                k1 += 1
            k += 1
        return new0, new1, new2