C312322331333132212111133133313231333132333132333132313123231323311   >>    C31232233133313221211113313331323133313233313233313231312323132331   <<    C312322331333132212111133133313231333132333132333132313123231323313   >>      C312322331333132212111133133313231333132333132333132313123231323312   >>