Help me in solving PREQ10 problem

My issue

Traceback (most recent call last):
File “/mnt/sol.py”, line 7, in
X = map + int
^
TypeError: unsupported operand type(s) for +: ‘type’ and ‘type’

My code

# Update the '_' in the code below

t = int(input())
for i in range(t):
    S = map(int,input().split())
    #create a variable X which stores the value of string S concatenated with itself
    X = map + int           
    #output the variable X
    print(X)

Learning course: Design and Analysis of Algorithms
Problem Link: String mirror - Double strings in Design and Analysis of Algorithms