/*
Enter your query here.
Please append a semicolon ";" at the end of the query and enter your query in a single line to avoid error.
*/

DECLARE @l INT = 1000

DECLARE @n INT = 2

DECLARE @primes VARCHAR(MAX) = ''

WHILE @n <= @l
BEGIN
    
    DECLARE @d INT = 2
    DECLARE @b BIT = 1
    
    WHILE @d < @n
    BEGIN
        
        IF @n % @d = 0 AND @n <> @d
        BEGIN
            SET @b = 0
            BREAK;
        END
        
        SET @d = @d + 1
    END
    
    IF @b = 1 
    BEGIN
        SET @primes = @primes + '&' + CAST(@n as VARCHAR(MAX))
    END

    SET @n = @n + 1
END

SET @primes = SUBSTRING(@primes, 2, LEN(@primes) - 1)

print @primes