C1111233133313231133133313331333133313231331123231333132322331121   >>    C111123313331323113313331333133313331323133112323133313232233112   <<    C1111233133313231133133313331333133313231331123231333132322331123   >>      C1111233133313231133133313331333133313231331123231333132322331122   >>