Problem:
Score : 300 points

Problem Statement

There are N people living on a number line.

The i-th person lives at coordinate X_i.

You are going to hold a meeting that all N people have to attend.

The meeting can be held at any integer coordinate. If you choose to hold the meeting at coordinate P, the i-th person will spend (X_i - P)^2 points of stamina to attend the meeting.

Find the minimum total points of stamina the N people have to spend.

Constraints

All values in input are integers.

1 \leq N \leq 100

1 \leq X_i \leq 100

Input

Input is given from Standard Input in the following format:

N
X_1 X_2 ... X_N

Output

Print the minimum total stamina the N people have to spend.

Sample Input 1

2
1 4

Sample Output 1

5

Assume the meeting is held at coordinate 2. In this case, the first person will spend (1 - 2)^2 points of stamina, and the second person will spend (4 - 2)^2 = 4 points of stamina, for a total of 5 points of stamina. This is the minimum total stamina that the 2 people have to spend.

Note that you can hold the meeting only at an integer coordinate.

Sample Input 2

7
14 14 2 13 56 2 37

Sample Output 2

2354

Solution in Go (1.6) (judge verdict: Wrong Answer)

package main
 
import (
	"fmt"
  	//"math"
    //"sort"
	//"strconv"
)
 
func main() {
  var N int
  fmt.Scanf("%d",&N)
  sli := make([]int,N)
  for i:=0;i<N;i++{
    	fmt.Scanf("%d",&sli[i])
   }
  
  sum:=0
  ans:=10000
    for P:=0;P<100;P++{
      for i:=0;i<N;i++{
        sum+=(P-sli[i])*(P-sli[i])
      }
      if ans>sum {
        ans=sum
      }
      sum=0
    }
  
  
  fmt.Print(ans)
}