#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char*mmap();

#define RD(v) int v=0;while(c=*r++-48,c>=0)v=v*10+c;
#define RDL(v) long v=0;while(c=*r++-48,c>=0)v=v*10+c;

int h[7];

main(){
	char*r=mmap(0,256*1024,1,2,0,0l);
	int c;

	RD(n);
	while(n--){
		RD(l);
		++h[l];
	}

	int k=1;
	if(h[k]<=h[2]) k=2;
	if(h[k]<=h[3]) k=3;
	if(h[k]<=h[4]) k=4;
	if(h[k]<=h[5]) k=5;
	if(h[k]<=h[6]) k=6;
	printf("%d",k);
}