C111123313331323113313331333133313331323112133313331333132331133132332131121   >>    C11112331333132311331333133313331333132311213331333133313233113313233213112   <<    C111123313331323113313331333133313331323112133313331333132331133132332131123   >>      C111123313331323113313331333133313331323112133313331333132331133132332131122   >>