diff --git a/kotlin-baseball/src/main/kotlin/baseball/controller/BaseballController.kt b/kotlin-baseball/src/main/kotlin/baseball/controller/BaseballController.kt
index a938d4e..c7c68e0 100644
--- a/kotlin-baseball/src/main/kotlin/baseball/controller/BaseballController.kt
+++ b/kotlin-baseball/src/main/kotlin/baseball/controller/BaseballController.kt
@@ -22,8 +22,5 @@ class BaseballController(
         } while (view.getUserContinueGame() == UserContinueGame.RESTART)
     }
 
-    private fun StrikeBall.isGameContinue(): Boolean {
-        println("${this.strike} ${this.ball}")
-        return this.strike != NUMBER_LENGTH
-    }
+    private fun StrikeBall.isGameContinue() = this.strike != NUMBER_LENGTH
 }
diff --git a/kotlin-baseball/src/main/kotlin/baseball/model/Numbers.kt b/kotlin-baseball/src/main/kotlin/baseball/model/Numbers.kt
index a814b76..0723b6c 100644
--- a/kotlin-baseball/src/main/kotlin/baseball/model/Numbers.kt
+++ b/kotlin-baseball/src/main/kotlin/baseball/model/Numbers.kt
@@ -6,20 +6,18 @@ const val MIN_NUMBER_INCLUDE = 1
 const val MAX_NUMBER_INCLUDE = 9
 const val NUMBER_LENGTH = 3
 
-class Numbers(input: String) {
-    private val numbers: List<Number> = input.map { Number(it.digitToInt()) }
-
+data class Numbers(val numbers: List<Number>) {
     companion object {
         fun generateRandom() =
             Numbers(
-                mutableListOf<Int>().apply {
+                mutableListOf<Number>().apply {
                     while (size != NUMBER_LENGTH) {
-                        val pickNumber = Randoms.pickNumberInRange(MIN_NUMBER_INCLUDE, MAX_NUMBER_INCLUDE)
+                        val pickNumber = Number(Randoms.pickNumberInRange(MIN_NUMBER_INCLUDE, MAX_NUMBER_INCLUDE))
                         if (pickNumber !in this) {
                             this.add(pickNumber)
                         }
                     }
-                }.joinToString("")
+                }.toList()
             )
     }
 
@@ -30,7 +28,7 @@ class Numbers(input: String) {
 
     fun compare(other: Numbers): StrikeBall {
         val strike = getStrike(other)
-        val ball = getBall(other, strike)
+        val ball = getBall(other)
         return StrikeBall(strike, ball)
     }
 
@@ -38,7 +36,7 @@ class Numbers(input: String) {
         (0 until NUMBER_LENGTH)
             .count { this.numbers[it] == other.numbers[it] }
 
-    fun getBall(other: Numbers, strike: Int) =
+    fun getBall(other: Numbers) =
         (0 until NUMBER_LENGTH)
             .count { i -> isBall(i, other) }
 
diff --git a/kotlin-baseball/src/main/kotlin/baseball/view/View.kt b/kotlin-baseball/src/main/kotlin/baseball/view/View.kt
index 8a14290..1915437 100644
--- a/kotlin-baseball/src/main/kotlin/baseball/view/View.kt
+++ b/kotlin-baseball/src/main/kotlin/baseball/view/View.kt
@@ -1,6 +1,7 @@
 package baseball.view
 
 import baseball.model.NUMBER_LENGTH
+import baseball.model.Number
 import baseball.model.Numbers
 import baseball.model.StrikeBall
 import baseball.model.UserContinueGame
@@ -13,7 +14,7 @@ class View {
 
     fun getUserNumbers(): Numbers {
         print("숫자를 입력해주세요 : ")
-        return Numbers(Console.readLine())
+        return Numbers(Console.readLine().map { Number(it.digitToInt()) })
     }
 
     fun getUserContinueGame() = UserContinueGame.of(Console.readLine())