str←⎕inp 'EOF'
 <select>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>
EOF
      str←∊str
      '<>'⍳str
3 1 3 3 3 3 3 3 2 3 3 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 1 3
      3 3 3 3 3 3 2 3 3 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 3 3 1 3 3
      3 3 3 3 3 2 3 3 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 3 3
      3 3 3 3 1 3 3 3 3 3 3 3 2 3 3 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3
      3 3 3 1 3 3 3 3 3 3 3 2 1 3 3 3 3 3 3 3 2 3
      (1 ¯1 0)['<>'⍳str]
0 1 0 0 0 0 0 0 ¯1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ¯1 0 0 0 0 0 1
      0 0 0 0 0 0 0 ¯1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ¯1 0 0 0 0 1
      0 0 0 0 0 0 0 ¯1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ¯1 0
      0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 ¯1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
      0 0 ¯1 0 0 0 0 1 0 0 0 0 0 0 0 ¯1 1 0 0 0 0 0 0 0 ¯1 0
      +\(1 ¯1 0)['<>'⍳str]
0 1 1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 1 1
      1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 1 1
      1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0
      0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0
      0 0 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0
      ~+\(1 ¯1 0)['<>'⍳str]
1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0
      0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0
      0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1
      1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
      1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1
      ((~+\(1 ¯1 0)['<>'⍳str])⊂str)
╔═════════════════════════════════════════════════════════════════════════╗
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║┃ ┃ ┃>  ┃ ┃>Volvo┃ ┃>  ┃ ┃>Saab┃ ┃>  ┃ ┃>Mercedes┃ ┃>  ┃ ┃>Audi┃ ┃>┃ ┃> ┃║
║┗━┛ ┗━━━┛ ┗━━━━━━┛ ┗━━━┛ ┗━━━━━┛ ┗━━━┛ ┗━━━━━━━━━┛ ┗━━━┛ ┗━━━━━┛ ┗━┛ ┗━━┛║
╚═════════════════════════════════════════════════════════════════════════╝
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╔════════════════════════════════════════════════════════════════╗
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║┗━┛ ┗━┛ ┗━━━━━━┛ ┗━┛ ┗━━━━━┛ ┗━┛ ┗━━━━━━━━━┛ ┗━┛ ┗━━━━━┛ ┗━┛ ┗━┛║
╚════════════════════════════════════════════════════════════════╝
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╔════════════════════════════════════════╗
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║┗━┛ ┗━━━━━━┛ ┗━━━━━┛ ┗━━━━━━━━━┛ ┗━━━━━┛║
╚════════════════════════════════════════╝
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╔════════════════════════════════════╗
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║┃>Volvo┃ ┃>Saab┃ ┃>Mercedes┃ ┃>Audi┃║
║┗━━━━━━┛ ┗━━━━━┛ ┗━━━━━━━━━┛ ┗━━━━━┛║
╚════════════════════════════════════╝
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╔════════════════════════════════╗
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║┃Volvo┃ ┃Saab┃ ┃Mercedes┃ ┃Audi┃║
║┗━━━━━┛ ┗━━━━┛ ┗━━━━━━━━┛ ┗━━━━┛║
╚════════════════════════════════╝