#include <stdio.h>


int main()
{
   int i,n;
   scanf("%d",&n);
   int a[n];
   int count1,count2,count3,count4,count5;
   count1=count2=count3=count4=count5=0;
   int max=0;
   int j=0;
   int c[5];
   for (i=0;i<n;i++)
   {
      scanf("%1d",&a[i]); 
   }
   for (i=0;i<n;i++)
   {
      switch (a[i])
      {
         case 1: 
         count1++;
         break;
         case 2: 
         count2++;
         break;
         case 3:
         count3++;
         break;
         case 4:
         count4++;
         break;
         case 5:
         count5++;
         break;
      }
   }
   c[0]=count1;
   c[1]=count2;
   c[2]=count3;
   c[3]=count4;
   c[4]=count5;    
    for (j=0;j<5;j++)
   {
      if(max<c[j]){
      max=c[j];
      }
   }
   if (max==count1){
   printf("1");
   goto label;
   } 
   else if (max==count2){
   printf("2");
   goto label;
   } 
   else if (max==count3){
   printf("3");
   goto label;
   } 
   else if (max==count4){
   printf("4");
   goto label;
   }
   else if (max==count5){
   printf("5");
   } 
   label: return 0;
}