C3132121111133313233121111331333133313331322331333132313113313233231   >>    C313212111113331323312111133133313331333132233133313231311331323323   <<    C3132121111133313233121111331333133313331322331333132313113313233233   >>      C3132121111133313233121111331333133313331322331333132313113313233232   >>