A below includes instructions 1-3, B 4-6, C 7-8, and D 9-10

A  (1-3): print 0, move left, move left until 0 found
B  (4-6): print 1, move right, move right until 0 found
C  (7-8): print 1, move right
D  (9-10): if 1 found start over, otherwise stop.

0 0 0 0 1 1 1 0 0 0    start
        |

0 0 0 0 0 1 1 0 0 0    result of A
      |

0 0 0 1 0 1 1 0 0 0    result of B
        |

0 0 0 1 1 1 1 0 0 0    result of C, D: 1 found so start over
          |

0 0 0 1 1 0 1 0 0 0    result of A
    |

0 0 1 1 1 0 1 0 0 0    result of B
          |

0 0 1 1 1 1 1 0 0 0    result of C, D: 1 found so start over
            |

0 0 1 1 1 1 0 0 0 0    result of A
  |

0 1 1 1 1 1 0 0 0 0    result of B
            |

0 1 1 1 1 1 1 0 0 0    result of C, D: 0 found, so stop
              |