Codeforces 135A-Replacement(有个小坑)

Little Petya very much likes arrays consisting of n integers, where each of them is in the range from 1 to 10⁹, inclusive. Recently he has received one such array as a gift from his mother. Petya didn't like it at once. He decided to choose exactly one element from the array and replace it with another integer that also lies in the range from 1 to 10⁹, inclusive. It is not allowed to replace a number with itself or to change no number at all.

After the replacement Petya sorted the array by the numbers' non-decreasing. Now he wants to know for each position: what minimum number could occupy it after the replacement and the sorting.

Input

The first line contains a single integer n (1 ≤ n ≤ 10⁵), which represents how many numbers the array has. The next line contains n space-separated integers — the array's description. All elements of the array lie in the range from 1 to 10⁹, inclusive.

Output

Print n space-separated integers — the minimum possible values of each array element after one replacement and the sorting are performed.

Example

Input

5
1 2 3 4 5

Output

1 1 2 3 4

Input

5
2 3 4 5 6

Output

1 2 3 4 5

Input

3
2 2 2

Output

1 2 2

题意：从一组数中替换一个数，使新的一组数尽可能的小。

水题妥妥的，排序然后将最大的数换成1再排序，但是如果最大的数是1，就将它换成2。想一下为什么，看看题目的描述。

AC代码：

#include <iostream>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <algorithm>

using namespace std;

int main()
{
    long long n,num[100005],i;
    while(~scanf("%lld",&n))
    {
        for(i=0; i<n; i++)
        {
            scanf("%lld",&num[i]);
        }
        sort(num,num+n);
        if(num[n-1])
        {
            num[n-1]=2;
        }
        else
        {
            num[n-1]=1;
        }
        sort(num,num+n);
        for(i=0; i<n-1; i++)
        {
            printf("%lld ",num[i]);
        }
        printf("%lld\n",num[n-1]);
    }
    return 0;
}