C3132121111331312113313331333133313231323133313331333132211233133312321   >>    C313212111133131211331333133313331323132313331333133313221123313331232   <<    C3132121111331312113313331333133313231323133313331333132211233133312323   >>      C3132121111331312113313331333133313231323133313331333132211233133312322   >>