diff --git a/froglike6/README.md b/froglike6/README.md
index 5ea1f20..7d82e43 100644
--- a/froglike6/README.md
+++ b/froglike6/README.md
@@ -23,4 +23,7 @@
  | 19차시 | 2025.07.04 | 애드 혹 | [서로소 그래프 게임](https://www.acmicpc.net/problem/34035)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/72|
  | 20차시 | 2025.07.09 | 조합론 | [암호 만들기](https://www.acmicpc.net/problem/1759)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/77|
  | 21차시 | 2025.07.14 | 기하학 | [Cows](https://www.acmicpc.net/problem/6850)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/82|
+ | 22차시 | 2025.07.22 | 그래프 | [밤(Time For The Moon Night)](https://www.acmicpc.net/problem/34064)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/88|
+ | 23차시 | 2025.07.22 | 정수 | [Fibonacci](https://www.acmicpc.net/problem/7677)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/89|
+ | 24차시 | 2025.08.01 | 구현 | [세그먼트 트리보다도 바･로･너･♡](https://www.acmicpc.net/problem/34075)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/91|
  ---
diff --git a/froglike6/graph_theory/34064.py b/froglike6/graph_theory/34064.py
new file mode 100644
index 0000000..c6c9251
--- /dev/null
+++ b/froglike6/graph_theory/34064.py
@@ -0,0 +1,46 @@
+import sys
+input = sys.stdin.readline
+
+N, M, K = map(int, input().split())
+grid = [[0]*M for _ in range(N)]
+for _ in range(K):
+    x, y = map(int, input().split())
+    grid[x-1][y-1] = 1
+
+a1, b1 = map(int, input().split())
+a2, b2 = map(int, input().split())
+a3, b3 = map(int, input().split())
+a4, b4 = map(int, input().split())
+
+a1, b1, a2, b2 = a1-1, b1-1, a2-1, b2-1
+a3, b3, a4, b4 = a3-1, b3-1, a4-1, b4-1
+
+visited = [[False]*M for _ in range(N)]
+dirs = [(1,0),(-1,0),(0,1),(0,-1)]
+answer = 0
+
+for i in range(N):
+    for j in range(M):
+        if grid[i][j] == 0 and not visited[i][j]:
+            stack = [(i, j)]
+            visited[i][j] = True
+            countA = 0
+            countB = 0
+            
+            while stack:
+                x, y = stack.pop()
+                if a1 <= x <= a2 and b1 <= y <= b2:
+                    countA += 1
+                if a3 <= x <= a4 and b3 <= y <= b4:
+                    countB += 1
+
+                for dx, dy in dirs:
+                    nx, ny = x + dx, y + dy
+                    if 0 <= nx < N and 0 <= ny < M:
+                        if grid[nx][ny] == 0 and not visited[nx][ny]:
+                            visited[nx][ny] = True
+                            stack.append((nx, ny))
+
+            answer += countA * countB
+
+print(answer)
\ No newline at end of file
diff --git a/froglike6/implementation/34075.py b/froglike6/implementation/34075.py
new file mode 100644
index 0000000..2eadbb2
--- /dev/null
+++ b/froglike6/implementation/34075.py
@@ -0,0 +1,29 @@
+import sys
+input = sys.stdin.readline
+
+n = int(input())
+algo = []
+for _ in range(n):
+    name, d = input().split()
+    algo.append((name, int(d)))
+
+m = int(input())
+member = {}
+for _ in range(m):
+    name, tier = input().split()
+    tier = int(tier)
+    pref = sorted(algo, key=lambda x: (abs(x[1] - tier), x[0]))
+    best1, best2 = pref[0][0], pref[1][0]
+    member[name] = (best1, best2)
+
+q = int(input())
+cur = None
+
+for _ in range(q):
+    line = input().strip()
+    if line.endswith("- chan!"):
+        cur = line.split(" - ")[0]
+        print("hai!")
+    else:
+        best1, best2 = member[cur]
+        print(f"{best2} yori mo {best1}")
\ No newline at end of file
diff --git a/froglike6/number_theory/7677.java b/froglike6/number_theory/7677.java
new file mode 100644
index 0000000..3ab6c40
--- /dev/null
+++ b/froglike6/number_theory/7677.java
@@ -0,0 +1,53 @@
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    private static final int MOD = 10000;
+
+    public static int fibo(long n) {
+        long m00 = 1, m01 = 1, m10 = 1, m11 = 0;
+        long v0 = 1, v1 = 0;
+
+        while (n > 0) {
+            if ((n & 1) == 1) {
+                long t0 = (m00 * v0 + m01 * v1) % MOD;
+                long t1 = (m10 * v0 + m11 * v1) % MOD;
+                v0 = t0;
+                v1 = t1;
+            }
+            long a = (m00 * m00 + m01 * m10) % MOD;
+            long b = (m00 * m01 + m01 * m11) % MOD;
+            long c = (m10 * m00 + m11 * m10) % MOD;
+            long d = (m10 * m01 + m11 * m11) % MOD;
+            m00 = a; m01 = b;
+            m10 = c; m11 = d;
+
+            n >>= 1;
+        }
+        return (int) v1;
+    }
+
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        List<Long> inputs = new ArrayList<>();
+        String line;
+
+        while ((line = br.readLine()) != null) {
+            line = line.trim();
+            if (!line.isEmpty()) {
+                inputs.add(Long.parseLong(line));
+            }
+        }
+        if (!inputs.isEmpty()) {
+            inputs.remove(inputs.size() - 1);
+        }
+
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+        for (long n : inputs) {
+            bw.write(fibo(n) + "\n");
+        }
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+}
\ No newline at end of file