C11112331333132311331333131333133313231333132212113313231323132333131331121   >>    C1111233133313231133133313133313331323133313221211331323132313233313133112   <<    C11112331333132311331333131333133313231333132212113313231323132333131331123   >>      C11112331333132311331333131333133313231333132212113313231323132333131331122   >>