nrminimcucifredinmijlocegale

#include<iostream>
#include<climits>
using namespace std;
int main()
{
    int n, i, x, minim=INT_MAX;
    cin>>n;
    for(i=1; i<=n; i++)
    {
        cin>>x;
        if(x/100%10==x/10%10 && x<minim )
        {
            minim=x;
        }
    }
    cout<<minim;
    return 0;
}