package contest170428; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; public class D { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(); int w = ni(); long h = nl(); int[][] bs = new int[n][]; for(int i = 0;i < n;i++){ bs[i] = new int[]{ni(), ni(), ni()-1}; } int[] qs = new int[w]; for(int i = 0;i < w;i++){ qs[i] = i; } dfs(-1, n+1, qs, w, bs, h); out.println(balance > 0 ? "A" : balance < 0 ? "B" : "DRAW"); } long balance = 0; void dfs(int l, int r, int[] qs, int w, int[][] bs, long h) { if(qs.length == 0)return; if(r-l == 1){ if(l == bs.length)return; if(l % 2 == 0){ balance += qs.length; }else{ balance -= qs.length; } return; } int mid = (l+r)/2; long[] imos = new long[w+1]; for(int i = 0;i < mid;i++){ imos[bs[i][2]] += bs[i][1]; imos[bs[i][2]+bs[i][0]] -= bs[i][1]; } for(int i = 0;i < w;i++)imos[i+1] += imos[i]; // tr(l, mid, r, imos); int[] lqs = new int[qs.length]; int[] rqs = new int[qs.length]; int pl = 0, pr = 0; for(int q : qs){ if(imos[q] < h){ rqs[pr++] = q; }else{ lqs[pl++] = q; } } dfs(l, mid, Arrays.copyOf(lqs, pl), w, bs, h); dfs(mid, r, Arrays.copyOf(rqs, pr), w, bs, h); } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new D().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }