C111123313331323113313331333133313231323133312111133131333122311   >>    C11112331333132311331333133313331323132313331211113313133312231   <<    C111123313331323113313331333133313231323133312111133131333122313   >>      C111123313331323113313331333133313231323133312111133131333122312   >>