UVa 10714 - Ants

//\\__ hr1212 __//\\

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef map<int,int> mi;

#define si(a) scanf("%lld",&a)
#define sii(a,b) scanf("%lld %lld",&a,&b)
#define siii(a,b,c) scanf("%lld %lld %lld",&a,&b,&c)
#define pi(a) printf("%lld\n",a)
#define nl printf("\n");
#define pb push_back
#define mp make_pair
#define all(c) (c).begin(),(c).end()
#define f(i,a,b) for(i=a;i<b;i++)
#define rf(i,a,b) for(i=a;i>=b;i--)
#define clr(x,a) memset(x,a,sizeof(x))
#define MAX 1000100
#define MOD 1000000007

ll n,m,a[MAX];

int main(){
    ll r,k,i,c=0,x=0,y=0,j,t,l,z,x1=0,y1=0;
    ll ans=0,ans1=0;string p[200];

    si(t);
    while(t--){
        sii(l,n);
        f(i,0,n)
            si(a[i]);
        ans=0;ans1=0;
        f(i,0,n){
            ans=max(ans,min(a[i],l-a[i]));
            ans1=max(ans1,max(a[i],l-a[i]));
        }
        cout<<ans<<" "<<ans1<<endl;
    }

    return 0;
}