C213211331333131212111133133313231333132313331322331323132331123231   >>    C21321133133313121211113313331323133313231333132233132313233112323   <<    C213211331333131212111133133313231333132313331322331323132331123233   >>      C213211331333131212111133133313231333132313331322331323132331123232   >>