C.cpp

#include<bits/stdc++.h>
using namespace std;
#define fo(i,n) for(i=0;i<n;i++)
#define fo2(i,start,end) for(i=start;i<=end;i++)
#define rfo(i,n) for(i=n-1;i>=0;i--)
#define lli long long int
#define deb(x) cout<<#x<<"="<<x<<endl
#define deb2(x,y) cout<<#x<<"="<<x<<","<<#y<<"="<<y<<endl
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define tr(it,a) for(auto it=a.begin(); it!=a.end();it++)
#define nl '\n'
#define PI 3.141592653589793238
#define mod 1000000007

void solve(){
    int i,j;
    string s;
    cin>>s;
    int n,freq[26]={0},temp; 
    bool flag;
    n=s.size();
    int ans[n]={0};
    fo(i,n){
        freq[s[i]-'a']++;
    }
    for(i=n-1;i>=0;i--){
        temp=s[i]-'a';
        freq[temp]--;
        flag=false;
        fo(j,temp){
            if(freq[j]>0){
                flag=true;
                break;
            }
        }
        if(flag){
            ans[i]=1;
        }
    }
    fo(i,n){
        if(ans[i]==0){
            cout<<"Mike\n";
        }
        else{
            cout<<"Ann\n";
        }
    }
}

int main(){
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int t=1;
    // cin>>t;
    while(t--){
        solve();
    }
    return 0;
}