C111123313331323113313331333133313231323133312111113331323223332311321   >>    C11112331333132311331333133313331323132313331211111333132322333231132   <<    C111123313331323113313331333133313231323133312111113331323223332311323   >>      C111123313331323113313331333133313231323133312111113331323223332311322   >>