#include <stdio.h>
int main() {
int n=0;
scanf("%d",&n);
int arr[100];
int count=0;
int j=0;
int c=0;
while(count<n&&scanf("%d",&j)!=EOF)
{
arr[count+1]=j;
count++;
}
arr[0]=0;
arr[n+1]=10000;
scanf("%d",&c);
int k=0;
for(k=0;k<n+1;k++)
{
if(arr[k]<=c&&arr[k+1]>=c)
printf("%d ",c);
if(k<n)
printf("%d ",arr[k+1]);
}
return 0;
}



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