diff --git a/tisobe/src/C034.java b/tisobe/src/C034.java
new file mode 100644
index 0000000000000000000000000000000000000000..631a421a4df44ba55906b188acdeadca79507039
--- /dev/null
+++ b/tisobe/src/C034.java
@@ -0,0 +1,53 @@
+package tisobe.src;
+
+import java.util.Scanner;
+
+public class Main {
+  public static void main(String[] args) {
+      // 自分の得意な言語で
+      // Let's チャレンジ！！
+    Scanner sc = new Scanner(System.in);
+  
+  /**定数の宣言*/
+    final char A_NUMBER = sc.next().charAt(0);
+    final char SIGN = sc.next().charAt(0);
+    final char B_NUMBER = sc.next().charAt(0);
+    final char EQUAL_MARK = sc.next().charAt(0);
+    final char C_NUMBER = sc.next().charAt(0);
+
+    System.out.println(calc_answer(A_NUMBER, SIGN, B_NUMBER, C_NUMBER));
+    sc.close();
+  }
+  
+  public static int calc_answer(final char aNumber, final char sign, final char bNumber, final char cNumber){
+      
+  int answerNumber =0;
+      
+      //どれがXなのか判定したのち、符号に応じた計算を行う
+      if (aNumber == 'x') {
+          
+          if (sign == '+') {
+               answerNumber = (cNumber - '0') - (bNumber - '0');
+          } else {
+            answerNumber = (cNumber - '0') + (bNumber - '0');
+          }
+          
+      } else if (bNumber == 'x') {
+          
+          if (sign == '+') {
+            answerNumber = (cNumber - '0') - (aNumber - '0');
+          } else {
+            answerNumber = (aNumber - '0') - (cNumber - '0');
+          }
+          
+      } else {
+           
+          if (sign == '+') {
+            answerNumber = (aNumber - '0') + (bNumber - '0');
+          } else {
+            answerNumber = (aNumber - '0') - (bNumber  - '0');
+          }
+      }
+      return answerNumber;
+  }
+}
\ No newline at end of file