C1111233133313231133133313331333133313231323331333133112312211111   >>    C111123313331323113313331333133313331323132333133313311231221111   <<    C1111233133313231133133313331333133313231323331333133112312211113   >>      C1111233133313231133133313331333133313231323331333133112312211112   >>