HackerRank，一行代码解决输出问题

Task
Read an integer N.
Without using any string methods, try to print the following:
1,2,3.....N
Note that "....." represents the values in between.
Input Format
The first line contains an integer N.
Output Format
Output the answer as explained in the task.
Sample Input

3

Sample Output

123

Pro Tip
You can use the print function inside a map(). Can you do a 1 line code to solve the problem above?

from __future__ import print_function
map(lambda x: print(x,end=''), range(1,input()+1))