C213211331333131212111133133313231333132313331322331323112332311   >>    C21321133133313121211113313331323133313231333132233132311233231   <<    C213211331333131212111133133313231333132313331322331323112332313   >>      C213211331333131212111133133313231333132313331322331323112332312   >>