C3132121111133313233121111331333133313331312121111331322331323133313231221   >>    C313212111113331323312111133133313331333131212111133132233132313331323122   <<    C3132121111133313233121111331333133313331312121111331322331323133313231223   >>      C3132121111133313233121111331333133313331312121111331322331323133313231222   >>