C11112331312111112111133133313331323132313232233132322331313331313221   >>    C1111233131211111211113313331333132313231323223313232233131333131322   <<    C11112331312111112111133133313331323132313232233132322331313331313223   >>      C11112331312111112111133133313331323132313232233132322331313331313222   >>