C312322331333132212111133133313331323133313233333211312111113331322123232321   >>    C31232233133313221211113313331333132313331323333321131211111333132212323232   <<    C312322331333132212111133133313331323133313233333211312111113331322123232323   >>      C312322331333132212111133133313331323133313233333211312111113331322123232322   >>