diff --git a/53_poker_hands/main.go b/53_poker_hands/main.go
index bc24130..d3aed26 100644
--- a/53_poker_hands/main.go
+++ b/53_poker_hands/main.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"strconv"
 	"strings"
 )
 
@@ -24,24 +25,24 @@ func main() {
 			break
 		}
 		line := string(a)
-		cards := strings.Split(line, " ")
-		if len(cards) != 10 {
+		cs := strings.Split(line, " ")
+		if len(cs) != 10 {
 			panic("invalid line")
 		}
 		h := hand{
-			player1: [5]string{
-				cards[0],
-				cards[1],
-				cards[2],
-				cards[3],
-				cards[4],
+			player1: cards{
+				card(cs[0]),
+				card(cs[1]),
+				card(cs[2]),
+				card(cs[3]),
+				card(cs[4]),
 			},
-			player2: [5]string{
-				cards[5],
-				cards[6],
-				cards[7],
-				cards[8],
-				cards[9],
+			player2: cards{
+				card(cs[5]),
+				card(cs[6]),
+				card(cs[7]),
+				card(cs[8]),
+				card(cs[9]),
 			},
 		}
 		input = append(input, h)
@@ -53,10 +54,23 @@ func main() {
 }
 
 type hand struct {
-	player1 [5]string
-	player2 [5]string
+	player1 cards
+	player2 cards
 }
 
 func (hand) isPlayer1Win() bool {
 	return false
 }
+
+type card string
+
+func (c card) number() int {
+	i, _ := strconv.Atoi(string(c[0]))
+	return i
+}
+
+func (c card) suit() string {
+	return string(c[1])
+}
+
+type cards [5]card