#include<bits/stdc++.h>
using namespace std;
int br[102];
int main()
{
    freopen("elections.in","r",stdin);
    freopen("elections.out","w",stdout);
    long long l,br1=0,maxbr=0,b,n,m;
    float k,a1,a2;
    cin>>n>>m;
    for(int i=0;i<m;i++){
        cin>>b;
        br[b]++;
    }
    for(int i=1;i<=n;i++){
            if(br[i]>maxbr){l=i;br1=0;maxbr=br[i];}
            if(br[i]==maxbr)br1++;
    }
    if(maxbr>=(m+1)/2&&br1==1){
        a1=maxbr;
        a2=m;
        k=100*a1/a2;
        cout<<l<<" ";
        cout<<fixed<<setprecision(2)<<k<<endl;
    }
    else cout<<"No winner\n";
return 0;
}