C3132121111331312113313331333133313331333112331333132333132322331333123232321   >>    C313212111133131211331333133313331333133311233133313233313232233133312323232   <<    C3132121111331312113313331333133313331333112331333132333132322331333123232323   >>      C3132121111331312113313331333133313331333112331333132333132322331333123232322   >>