C3132121111331312113313331333133313331322331323133313232323213221   >>    C313212111133131211331333133313331333132233132313331323232321322   <<    C3132121111331312113313331333133313331322331323133313232323213223   >>      C3132121111331312113313331333133313331322331323133313232323213222   >>