diff --git a/dseki/paiza/src/C112.java b/dseki/paiza/src/C112.java
new file mode 100644
index 0000000000000000000000000000000000000000..a7e0d825f3868463c520f55471f72c0f08446053
--- /dev/null
+++ b/dseki/paiza/src/C112.java
@@ -0,0 +1,51 @@
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Scanner;
+
+/**
+ * 時差ぼけ.
+ */
+public class C112 {
+  private final int itineraryDays;  // 旅程の日数
+  private final int TIME_OF_DAY = 24;  // 1日の時間
+  
+  private C112(final int itineraryDays) {
+    this.itineraryDays = itineraryDays;
+  }
+  
+  /**
+   * メインメソッド.
+   */
+  public static void main(final String[] args) {
+    final Scanner sc = new Scanner(System.in);
+    new C112(sc.nextInt()).findMinAndMax(sc);
+    sc.close();
+  }
+  
+  // 最小値と最大値を返すメソッド
+  private void findMinAndMax(final Scanner sc) {
+    final ArrayList<Integer> totalLengthOfStayList = getTimeSpentInDayList(sc); 
+    System.out.println(Collections.min(totalLengthOfStayList));
+    System.out.println(Collections.max(totalLengthOfStayList));
+  }
+  
+  // 1日でどのくらいの時間を過ごしたかのリストを返すメソッド
+  private ArrayList<Integer> getTimeSpentInDayList(final Scanner sc) {
+    final ArrayList<Integer> timeSpentInDayList = new ArrayList<Integer>();
+    for (int i = 0; i < itineraryDays; i++) {
+      final int departureTime = sc.nextInt();  // 出発時刻
+      final int flightTime = sc.nextInt();  // 飛行機の乗車時間
+      final int arrivalTime = sc.nextInt();  // 到着時刻
+      final int timeSpentAfterArrival = calculateTimeSpentAfterArrival(arrivalTime);
+      final int timeSpentInDay = departureTime + flightTime + timeSpentAfterArrival;
+      timeSpentInDayList.add(timeSpentInDay);
+    }
+    return timeSpentInDayList;
+  }
+  
+  // 到着後、24時まであと何時間あるかを計算するメソッド
+  private int calculateTimeSpentAfterArrival(final int arrivalTime) {
+    final int timeSpentAfterArraival = this.TIME_OF_DAY - arrivalTime;
+    return timeSpentAfterArraival;
+  }
+}