C111123313331323113313331333133313331122112312111133133313223313221323221   >>    C11112331333132311331333133313331333112211231211113313331322331322132322   <<    C111123313331323113313331333133313331122112312111133133313223313221323223   >>      C111123313331323113313331333133313331122112312111133133313223313221323222   >>