#include<bits/stdc++.h>
int main()
{
int a[101],n,i,j,t;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&a[i]);
}
for(i=1;i<=n-1;i++)
{
for(j=1;j<=n-i;j++)
{
if(a[j]>a[j+1])
{
t=a[j];
a[j]=a[j+1];
a[j+1]=t;
}
}
}
printf("%d",a[i]);
for(i=2;i<=n;i++)
{
if(a[i]!=a[i-1])
printf("%d ",a[i]);
}
return 0;
}
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