#include <iostream>
#include <vector>
using namespace std;
int main(){
	int length, n;
	int tmp;
	int js;
	vector<int> ma, mi;
	cin >> length >> n;
	for(int i = 0;i < n; i++){
		cin >> tmp;
		js = max(length - tmp + 1, tmp);
		ma.push_back(js);
		js = min(length - tmp + 1, tmp);
		mi.push_back(js);
	}
	int smax = 0;
	int smax2 = 0;
	for(int i = 0;i < n; i++){
		if(ma.at(i) > smax) smax = ma[i];
		if(mi[i] > smax2) smax2 = mi[i];
	}
	cout << smax2 << " " << smax;
	return 0;
}