C11111211113313112113313331333133313331333132313331333133313311211113323223221   >>    C1111121111331311211331333133313331333133313231333133313331331121111332322322   <<    C11111211113313112113313331333133313331333132313331333133313311211113323223223   >>      C11111211113313112113313331333133313331333132313331333133313311211113323223222   >>