C132233133112121111331333133313331323133311331323223313233311231   >>    C13223313311212111133133313331333132313331133132322331323331123   <<    C132233133112121111331333133313331323133311331323223313233311233   >>      C132233133112121111331333133313331323133311331323223313233311232   >>