C111123313331323113313331323133313331333132331211113313331323211321   >>    C11112331333132311331333132313331333133313233121111331333132321132   <<    C111123313331323113313331323133313331333132331211113313331323211323   >>      C111123313331323113313331323133313331333132331211113313331323211322   >>