/*
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 ooooydNNNNNNNNNNNNNNNNNNNNNNNNmmNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNdyoooo
 oosmNNNNNNNNNNNNNNNNNNNNNNNNNNmmmmddmNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNmsoo
 oshmNNNNNNNNNNNNNNNNNNNNNNNNmdsshdmmmmmmNNNNNNNNNdmNNNNNNNNNNNNNNNNNNNNNNyo
 shhdNNNNNNNNNNNNNNNNNNNNNmys++/:--.....-:+oshmNNNmhmNNNNNNNNNNNNNNNNNNNNNNy
 yhhhNNNNNNNNNNNNNNNNNmho:.``               `./sdNNNNNNNNNNNNNNNNNNNNNNNNNNm
 hhhhNNNNNNNNNNNNNhhyo-`                      `-/ydNNNNNNNNNNNNNNNNNNNNNNNNN
 hddhdNNNNNNNNNNNd+.`                           .:+hNNNNNNNNNNNNNNNNNNNNNNNN
 hmdyhdNNNNNNNNdo-`                              .:+mNNNNNNNNNNNNNNNNNNNNNNN
 yyddyhmNNNNNmo.                                 `/oymNNNNNNNNNNNNNNNNNNNNNN
 sshmmNNNNNNd-`                 ` `               `+ssdNNNNNNNNNNNNNNNNNNNNN
 ooyNNNNNNNm:                  ``````              `://sdNNNNNNNNNNNNNNNNNNN
 sydmNNNNNNd.                  ```` `        `..``    ``:smNNNNNNNNNNNNNNNNN
 mmmmNNNNNNd.                  ` `````    `.-:///:-`    `.+dNNNNhNNNNNNNNNNN
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 NNNNNNNNNNd-      ````````````   ``````                        .+dNNNNNNN/.
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 NNNNNNNNNNh`    ````                ```                 `--`    `.oNNNNNN+
 NNNNNNNNNNm-    ` `                  ``              `./oo:`     `+NNNNNNs
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 */
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
#define vll vector< ll >
#define pll pair<ll, ll>
#define vpll vector<pll>
#define vvll vector<vector< ll > >
#define fo(in, out) freopen(in, "r", stdin);freopen(out, "w", stdout);
#define int ll
#define debug(a) cerr << #a << " = " << a << '\n';
#define debug2(a, b) cerr << #a << " = " << a << ", " << #b << " = " << b <<'\n';
#define debug3(a, b, c) cerr << #a << " = " << a << ", " << #b << " = " << b << ", " << #c << " = " << c << '\n';

signed main(){
#ifdef DEBUG
    freopen("in.txt", "r", stdin);
#endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll h, w, n;
    cin >> h >> w >> n;
    vll wi(n);
    h = min(h, n+1);
    ll k = (ll)(sqrt(h+1));
    vll free(h, w);
    ll m = (h+k-1)/k;
    vll b(m, w);
    for(int i=0;i<n;i++){
        ll width;
        cin >> width;
        bool f = 1;
        for(int i=0;i<m;i++){
            if(b[i]>=width){
                ll ind = -1;
                for(int j=k*i;j<min(h, k*(i+1));j++){
                    if(free[j]>=width){
                        free[j]-=width;
                        ind = j;
                        break;
                    }
                }
                if(ind==-1) break;
                f = 0;
                cout << ind+1 << '\n';
                b[i] = -1;
                for(int j=k*i;j<min(h, k*(i+1));j++){
                    if(free[j]>b[i]){
                        b[i] = free[j];
                    }
                }
                break;
            }
        }
        if(f) cout << -1 << '\n';
    }
}