return lengthZero;
}
const lineCount1 = Math.floor(l1 / factor);
const lineCount2 = Math.floor(l2 / factor);
const colCount2 = l2 - lineCount2 * factor;
if (lineCount1 === lineCount2) {
const colCount1 = l1 - lineCount1 * factor;
return toLength(0, colCount2 - colCount1);
return toLength(lineCount2 - lineCount1, colCount2);
}