C1111133313331323223313331333133313311211111211331323312111133112321   >>    C111113331333132322331333133313331331121111121133132331211113311232   <<    C1111133313331323223313331333133313311211111211331323312111133112323   >>      C1111133313331323223313331333133313311211111211331323312111133112322   >>