```
public static string TrimLeft(string word)
    {
        int numberOfLetters = 0;
        foreach (var c in word)
        {
            numberOfLetters++;
        }

        int start = 0, end = numberOfLetters - 1;
        string b = "";
        for (int i = 0; i < numberOfLetters; i++)
        {
            if (!char.IsWhiteSpace(word[i]))
           {
                start = i;

                b += word[i];
            }

        }

        Console.WriteLine("Trimmed version: {0}", b);
        return word;
    }

```

i'm trying to write trimleft function by myself i couldnt quite figure out how i did the normal trim version but how can i do the trimleft version of it without using any inbuilt string. functions like substring etc.