System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at Program.SecondMethod() in c:\Windows\Temp\kdqyr4tj.0.cs:line 24
at Program.FirstMethod() in c:\Windows\Temp\kdqyr4tj.0.cs:line 14