C3132121111331312113313331333133313331322331323133313221311212321   >>    C313212111133131211331333133313331333132233132313331322131121232   <<    C3132121111331312113313331333133313331322331323133313221311212323   >>      C3132121111331312113313331333133313331322331323133313221311212322   >>