update,

catmk2/task1/utils/appendResult.js

@@ -0,0 +1,20 @@
+function appendResult(row, comment_to_write) {
+  var output = { state: "init", debug: { comment_to_write }, error: "" };
+  try {
+    var sheet = SpreadsheetApp.openById(SHEET_ID).getSheetByName(
+      SHEET_STUDENT_PROGRESS
+    );
+
+    var result_cell = getCell(sheet, row, COL_STUDENT_PROGRESS_RESULT);
+    var result_value = readCell(result_cell);
+
+    if (result_value.trim() == "") {
+      writeCell(result_cell, comment_to_write);
+    } else {
+      writeCell(result_cell, [result_value, comment_to_write].join("\n"));
+    }
+  } catch (error) {
+    output = { ...output, error };
+    console.log(output);
+  }
+}