C111123313331323113313331333133313331122112312111112111112111113321131   >>    C11112331333132311331333133313331333112211231211111211111211111332113   <<    C111123313331323113313331333133313331122112312111112111112111113321133   >>      C111123313331323113313331333133313331122112312111112111112111113321132   >>