Clear contents of the balance sheet cells filled with financial data from the last year

clearBalanceSheet.gs

function sheetName() {
  var spreedsheet = SpreadsheetApp.getActiveSpreadsheet();
  const monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];

  const monthSheets = monthNames.map(name => spreedsheet.getSheetByName(name));

  const COLUMN_START = 6;
  const DAYS_COUNT = 31;

  for(var i=0; i < monthSheets.length; i++) {
    const sheet = monthSheets[i];

    sheet.getRange(39, COLUMN_START, 7, DAYS_COUNT).clearContent();
    sheet.getRange(53, COLUMN_START, 4, DAYS_COUNT).clearContent();
    sheet.getRange(59, COLUMN_START, 5, DAYS_COUNT).clearContent();
    sheet.getRange(66, COLUMN_START, 6, DAYS_COUNT).clearContent();
    sheet.getRange(74, COLUMN_START, 5, DAYS_COUNT).clearContent();
    sheet.getRange(81, COLUMN_START, 6, DAYS_COUNT).clearContent();
    sheet.getRange(89, COLUMN_START, 5, DAYS_COUNT).clearContent();
    sheet.getRange(96, COLUMN_START, 8, DAYS_COUNT).clearContent();
    sheet.getRange(106, COLUMN_START, 6, DAYS_COUNT).clearContent();
    sheet.getRange(114, COLUMN_START, 6, DAYS_COUNT).clearContent();
    sheet.getRange(122, COLUMN_START, 7, DAYS_COUNT).clearContent();
    sheet.getRange(131, COLUMN_START, 6, DAYS_COUNT).clearContent();
    sheet.getRange(139, COLUMN_START, 4, DAYS_COUNT).clearContent();
  } 
}