diff --git a/tisobe/src/B165.java b/tisobe/src/B165.java
new file mode 100644
index 0000000000000000000000000000000000000000..d0a5d113d42e7eb47bc654952998af56a31efb3c
--- /dev/null
+++ b/tisobe/src/B165.java
@@ -0,0 +1,138 @@
+package tisobe.src;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Scanner;
+
+enum Fire_situation {
+  TREE("#"),
+  TREELESS("."),
+  BURNED("B"),
+  BURING("Burning"),
+  ASH("A");
+
+  private String symbolOfMap;
+
+  private Fire_situation(String symbolOfMap) {
+    this.symbolOfMap = symbolOfMap;
+  }
+
+  public String getSymbol() {
+    return symbolOfMap;
+  }
+}
+
+
+public class B165 {
+
+  public static void main(String[] args) {
+    // 自分の得意な言語で
+    // Let's チャレンジ！！
+    final Scanner sc = new Scanner(System.in);
+
+    final int MAP_HEIGHT = sc.nextInt();
+    final int MAP_WIDTH = sc.nextInt();
+    final int FIRE_LOCATE_X = sc.nextInt();
+    final int FIRE_LOCATE_Y = sc.nextInt();
+    final int TIME = sc.nextInt();
+
+    final List<List<String>> FOREST = new ArrayList<>();
+    for (int i = 0; i < MAP_HEIGHT; i++) {
+      FOREST.add(Arrays.asList(sc.next().split("")));
+    }
+
+    Forest Forest = new Forest(MAP_HEIGHT, MAP_WIDTH, FIRE_LOCATE_X, FIRE_LOCATE_Y, FOREST);
+    for (int t = 0; t < TIME; t++) {
+      Forest.simulation_Fire();
+    }
+
+ 
+    System.out.println(Forest.makeForestMap());
+    sc.close();
+  }
+
+}
+
+
+class Forest {
+  private int map_Height;
+  private int map_Width;
+  private int fire_Locate_X;
+  private int fire_Locate_Y;
+  private List<List<String>> forest;
+
+  public Forest(final int MAP_HEIGHT, final int MAP_WIDTH, final int FIRE_LOCATE_X,
+      final int FIRE_LOCATE_Y, List<List<String>> FOREST) {
+    this.fire_Locate_X = FIRE_LOCATE_X;
+    this.fire_Locate_Y = FIRE_LOCATE_Y;
+    this.map_Height = MAP_HEIGHT;
+    this.map_Width = MAP_WIDTH;
+    this.forest = FOREST;
+    this.forest.get(FIRE_LOCATE_X - 1).set(FIRE_LOCATE_Y - 1, Fire_situation.BURNED.getSymbol());
+  }
+
+  public List<List<String>> getFOREST() {
+    return forest;
+  }
+
+  public void simulation_Fire() {
+    for (int y = 0; y < map_Height; y++) {
+      for (int x = 0; x < map_Width; x++) {
+        spredFireTree(y, x);
+      }
+    }
+    // 燃えている箇所の確定
+    for (int y = 0; y < map_Height; y++) {
+      Collections
+          .replaceAll(forest.get(y), Fire_situation.BURING.getSymbol(), Fire_situation.BURNED
+              .getSymbol());
+    }
+  }
+
+  /**
+   * 木("#")を燃やす TIMEに応じて炎の判定をおこなうため"Burning"で仮置き
+   */
+  public void burningTree(final int Y, final int X) {
+    if (forest.get(Y).get(X).equals(Fire_situation.TREE.getSymbol())) {
+      forest.get(Y).set(X, Fire_situation.BURING.getSymbol());
+    }
+  }
+
+  /** 隣接するマスに炎を広げて、燃えている箇所を灰にする */
+  public void spredFireTree(final int Y, final int X) {
+    if (forest.get(Y).get(X).equals(Fire_situation.BURNED.getSymbol())) {
+
+      // 左に延焼
+      if (X - 1 >= 0) {
+        burningTree(Y, X - 1);
+      }
+      // 上に延焼
+      if (Y - 1 >= 0) {
+        burningTree(Y - 1, X);
+      }
+      // 右に延焼
+      if (X + 1 < map_Width) {
+        burningTree(Y, X + 1);
+      }
+      // 下に延焼
+      if (Y + 1 < map_Height) {
+        burningTree(Y + 1, X);
+      }
+      forest.get(Y).set(X, Fire_situation.ASH.getSymbol());
+    }
+  }
+
+  public String makeForestMap() {
+    // 結果の作成
+    StringBuilder forestMap = new StringBuilder();
+    for (int y = 0; y < map_Height; y++) {
+      for (int x = 0; x < map_Width; x++) {
+        forestMap.append(forest.get(y).get(x));
+      }
+      forestMap.append("\n");
+    }
+    return forestMap.toString();
+  }
+}