C213211331333131212111133133313231333132313331322331323132321111   >>    C21321133133313121211113313331323133313231333132233132313232111   <<    C213211331333131212111133133313231333132313331322331323132321113   >>      C213211331333131212111133133313231333132313331322331323132321112   >>