C213211331333131212111133133313231333132313331322331323112112131   >>    C21321133133313121211113313331323133313231333132233132311211213   <<    C213211331333131212111133133313231333132313331322331323112112133   >>      C213211331333131212111133133313231333132313331322331323112112132   >>