C1111133313331323223313331333133313331323131211113313231121323113121   >>    C111113331333132322331333133313331333132313121111331323112132311312   <<    C1111133313331323223313331333133313331323131211113313231121323113123   >>      C1111133313331323223313331333133313331323131211113313231121323113122   >>