#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,max=0,min=10000; cin>>n; int a[n][n]; for(int i=0;i<=n-1;i++){ for(int j=0;j<=n-1;i++){ cin>>a[i][j]; if(max<a[i][j]){ max=a[i][j]; } if(min>a[i][j]){ min=a[i][j]; } } } cout<<max<<min;; return 0; }