C111123313331323113313331333133313331122112312111133132211211321   >>    C11112331333132311331333133313331333112211231211113313221121132   <<    C111123313331323113313331333133313331122112312111133132211211323   >>      C111123313331323113313331333133313331122112312111133132211211322   >>