C213211331333131212111133133313231333132313331322331323132322331   >>    C21321133133313121211113313331323133313231333132233132313232233   <<    C213211331333131212111133133313231333132313331322331323132322333   >>      C213211331333131212111133133313231333132313331322331323132322332   >>