C312312111133131212111133133313331322331323223313231333132331133121   >>    C31231211113313121211113313331333132233132322331323133313233113312   <<    C312312111133131212111133133313331322331323223313231333132331133123   >>      C312312111133131212111133133313331322331323223313231333132331133122   >>