Problem:
Score : 200 points

Problem Statement

There are N positive integers written on a blackboard: A_1, ..., A_N.

Snuke can perform the following operation when all integers on the blackboard are even:

Replace each integer X on the blackboard by X divided by 2.

Find the maximum possible number of operations that Snuke can perform.

Constraints

1 \leq N \leq 200

1 \leq A_i \leq 10^9

Input

Input is given from Standard Input in the following format:

N
A_1 A_2 ... A_N

Output

Print the maximum possible number of operations that Snuke can perform.

Sample Input 1

3
8 12 40

Sample Output 1

2

Initially, [8, 12, 40] are written on the blackboard.
Since all those integers are even, Snuke can perform the operation.

After the operation is performed once, [4, 6, 20] are written on the blackboard.
Since all those integers are again even, he can perform the operation.

After the operation is performed twice, [2, 3, 10] are written on the blackboard.
Now, there is an odd number 3 on the blackboard, so he cannot perform the operation any more.

Thus, Snuke can perform the operation at most twice.

Sample Input 2

4
5 6 8 10

Sample Output 2

0

Since there is an odd number 5 on the blackboard already in the beginning, Snuke cannot perform the operation at all.

Sample Input 3

6
382253568 723152896 37802240 379425024 404894720 471526144

Sample Output 3

8

Solution in Go (1.6) (judge verdict: Accepted)

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
	"math"
)

func main() {
	var N int
	fmt.Scan(&N)
	sc := bufio.NewScanner(os.Stdin)
	var s string
	if sc.Scan() {
		s = sc.Text()
	}
	slice := strings.Split(s, " ")
	var inputsArray []int
	for i := 0; i < N; i++ {
		bar, _ := strconv.Atoi(slice[i])
		inputsArray = append(inputsArray, bar)
	}
	result := 0
  breakflag := 0
	for {
		for _, s := range inputsArray {
          nino:=int(math.Pow(2, float64(result)))
          if s%nino != 0 {
            	breakflag = 1
				break
			}
		}
      if breakflag==1{
      break
      }
		result += 1
	}
  fmt.Println(result-1)

}