C111123313121111121111331333133313331323221211113313222313231321   >>    C11112331312111112111133133313331333132322121111331322231323132   <<    C111123313121111121111331333133313331323221211113313222313231323   >>      C111123313121111121111331333133313331323221211113313222313231322   >>