C111123313331323113313331333133313331122112312111133133313221321321   >>    C11112331333132311331333133313331333112211231211113313331322132132   <<    C111123313331323113313331333133313331122112312111133133313221321323   >>      C111123313331323113313331333133313331122112312111133133313221321322   >>