#include <vector>
#include <iostream>
#include <list>
#include <algorithm>
using namespace std;
int main()
{
    size_t n;
    size_t k;
    vector<int64_t> a;
    std::cin>>n>>k;
    for(size_t i = 0 ; i != n; ++i)
    {
        cin>>a[i];
    }
    int64_t cnt = 0;
    int64_t cnt2 = 0;
    std::sort(a.begin(), a.end());
    int64_t u = a[0];
    for(auto b : a)
    {
        if(b == u)
        {
            cnt++;
        }
        else {
            cnt2++;
            u = b;
        }
    }
    cnt--;

std::cout<<cnt<<cnt2;
}