C111123313331323113313331333133313231323133312111133131333132321321   >>    C11112331333132311331333133313331323132313331211113313133313232132   <<    C111123313331323113313331333133313231323133312111133131333132321323   >>      C111123313331323113313331333133313231323133312111133131333132321322   >>