What is creating a newline in my constant?

I'm getting a "newline in constant" error in my C# after adding the TIME_FORMAT function(from MySQL), into an SQL string that I'm building and I'm not sure why or how to fix it. I tried to escape the '%' character that precedes the 'T' for the 2nd parameter of the function, but it didn't solve the problem and gave me a different error as a matter of fact. Why does it think that by adding "TIME_FORMAT("00:00:00", "%T")  to my string, that I'm adding a new line in my constant? Please help.


my MySQL string in C#

sql = String.Format(@"SELECT 
	AthleteUid, AthleteFullName, SEC_TO_TIME((SUM(TIMESTAMPDIFF(MINUTE, TimeIn, TimeOut))) * 60) AS WeekTotal, RequiredHours, SportTeamName AS SportTeam 
FROM 
	utathleteinfo uai 
    	INNER JOIN 
    utinout uio on uai.AthleteUid = uio.StudentID 
    	INNER JOIN 
    utsportteam ust ON ust.utSportTeamUid = uai.SportUid 
WHERE 
	uio.TimeOut IS NOT NULL 
    AND uio.TimeIn >= '2018-01-29 00:00:00' 
    AND uio.TimeOut <= '2018-02-02 23:59:59' 
GROUP BY 
	uai.AthleteUid, AthleteFullName, WeekTotal, RequiredHours, SportTeamName, SemesterTime, Coach 
ORDER BY 
 	AthleteFullName)
UNION
(SELECT 
	AthleteUid, AthleteFullName, TIME_FORMAT("00:00:00", "%T") AS WeekTotal, RequiredHours, SportTeamName AS SportTeam 
FROM 
	utathleteinfo uai 
    	INNER JOIN 
    utinout uio on uai.AthleteUid = uio.StudentID 
    	INNER JOIN 
    utsportteam ust ON ust.utSportTeamUid = uai.SportUid 
WHERE 
	WeekTotal = '0:00'
GROUP BY 
	uai.AthleteUid, AthleteFullName, WeekTotal, RequiredHours, SportTeamName, SemesterTime, Coach
ORDER BY 
 	AthleteFullName) ORDER BY AthleteFullName");

Select allOpen in new window

the error:

" Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS1010: Newline in constant

Source Error:


Line 202:                              sql = sql + String.Format(@" UNION
Line 203:                                    (SELECT
Line 204:                                          AthleteUid, AthleteFullName, TIME_FORMAT("00:00:00", "%T") AS WeekTotal, RequiredHours, SportTeamName AS SportTeam
Line 205:                                    FROM
Line 206:                                          utathleteinfo uai "