Explain this code - for loop

[RavCOder]

Hi,
I'm doing Hackerrank's challenge "Learn to Code in 30 days" and this is link for the challenge.
However I was trying this :

#!/bin/python3

import math
import os
import random
import re
import sys



if __name__ == '__main__':
    n = int(input())

    i = 0
    for i in range (1,11):
       for j in range (n):
     print ( i * j ) 

but doesn't work and I found the solution :

#!/bin/python3

import math
import os
import random
import re
import sys



if __name__ == '__main__':
    n = int(input())

    print( *['%d x %d = %d'%(n, i, n*i) for i in range(1, 11)], sep="\n" )

My question is that I don't understand the soultion that the only line of code and what are% d and % in Python?
Regards,
RavCoder