C213211331333131212111133133313231333132313331322331323133313113122331   >>    C21321133133313121211113313331323133313231333132233132313331311312233   <<    C213211331333131212111133133313231333132313331322331323133313113122333   >>      C213211331333131212111133133313231333132313331322331323133313113122332   >>