instruction: Change the pin code from 456673 to 123678 for the letter. .

previous_actions: 

active_application: Pop-Up Window

screen_description: windows {
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    top: 1147
    right: 48
    bottom: 1210
  }
  id: 4540
  layer: 1
  title: "Pop-Up Window"
  window_type: TYPE_APPLICATION
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        right: 48
        bottom: 1210
      }
      class_name: "android.view.View"
      depth: 1
    }
  }
}
windows {
  bounds_in_screen {
    top: 128
    right: 1080
    bottom: 2400
  }
  id: 4519
  title: "Letter Templates"
  window_type: TYPE_APPLICATION
  is_active: true
  is_focused: true
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        right: 1080
        bottom: 2400
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      depth: 2
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      depth: 3
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      depth: 4
    }
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      depth: 5
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        right: 1080
        bottom: 346
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      class_name: "android.widget.HorizontalScrollView"
      is_focusable: true
      is_scrollable: true
      depth: 6
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        right: 1080
        bottom: 2337
      }
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      is_scrollable: true
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        top: 1359
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    }
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      class_name: "android.widget.RelativeLayout"
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      depth: 7
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      is_focusable: true
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        right: 1054
        bottom: 1941
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      is_focusable: true
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      is_focusable: true
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        bottom: 212
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      depth: 8
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        bottom: 341
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      class_name: "android.webkit.WebView"
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}


assistant: !FUNCTIONCALL{"name": "click", "parameters": {"x": 357, "y": 853}}