C111112111133131121133133313331333131133133313231333132322132321   >>    C11111211113313112113313331333133313113313331323133313232213232   <<    C111112111133131121133133313331333131133133313231333132322132323   >>      C111112111133131121133133313331333131133133313231333132322132322   >>