class p010(object):

    def isMatch(self, s, p):
        result = [[False for j in xrange(len(p) + 1)]
                  for i in xrange(len(s) + 1)]

        result[0][0] = True

        for i in xrange(2, len(p) + 1):
            if p[i - 1] == '*':
                result[0][i] = result[0][i - 2]

        for i in xrange(1, len(s) + 1):
            for j in xrange(1, len(p) + 1):
                if p[j - 1] != '*':
                    result[i][j] = result[i - 1][j - 1] and (
                        s[i - 1] == p[j - 1] or p[j - 1] == '.')
                else:
                    result[i][j] = result[i][
                        j - 2] or (result[i - 1][j] and (
                            s[i - 1] == p[j - 2] or p[j - 2] == '.'))

        return result[len(s)][len(p)]


S = p010()
print S.isMatch("aa", ".*")
