C312322331333132212111133133313231333132333132333132313221121132311   >>    C31232233133313221211113313331323133313233313233313231322112113231   <<    C312322331333132212111133133313231333132333132333132313221121132313   >>      C312322331333132212111133133313231333132333132333132313221121132312   >>