#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

const int INF = 1e9;
const int MOD = 1e9+7;
const ll LINF = 1e18;

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) for(int i=0;i<(n);++i)
#define REPR(i,n) for(int i=n;i>=0;i--)
#define ALL(v) ((v).begin(),(v).end())
#define COUT(x) cout<<(x)<<"\n"


int main(){
    int n,m;
    cin >> n >> m;
    map<int,int>map1;
    int t;
    FOR(i,1,m+1)map1[i]=0;
    REP(i,n){
        cin >> t;
        if(t>m)continue;
        map1[t]++;
    }
    int count = 0;
    for(const auto& x:map1){
        int num1 = x.first;
        int num2 = x.second;
        cout << num1 << " " << num2 << endl;
    }
    return 0;
}