diff --git a/Retos/Reto #37 - COLORES HEX Y RGB [Media]/go/Akihiro93.go b/Retos/Reto #37 - COLORES HEX Y RGB [Media]/go/Akihiro93.go
new file mode 100644
index 0000000000..4abb3fd04d
--- /dev/null
+++ b/Retos/Reto #37 - COLORES HEX Y RGB [Media]/go/Akihiro93.go	
@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	fmt.Print("")
+	converter_rgb(8, 200, 33)
+	converter_hex("#08C821")
+}
+
+func converter_rgb(r, g, b int) {
+	
+	var result string = "#"
+	for _, v := range([]int{r, g,b}) {
+		var hex_v string = ""
+			hex_v = fmt.Sprintf("%02X", v)
+			hex_v = strings.ToUpper(hex_v)
+		result = result + hex_v
+	}
+	fmt.Println(result)
+}
+
+func converter_hex(hex string) {
+	var list_values []int64
+	for _, v := range([]string{hex[1:3], hex[3:5], hex[5:7]}) {
+		i, err := strconv.ParseInt(v, 16, 64)
+		if err != nil {
+			log.Fatalln(err)
+		}
+		list_values = append(list_values, i)
+	}
+	fmt.Printf("(r: %d, g: %d, b: %d )",list_values[0], list_values[1], list_values[2])
+}
diff --git a/Retos/Reto #37 - COLORES HEX Y RGB [Media]/python/Aknihiro93.py b/Retos/Reto #37 - COLORES HEX Y RGB [Media]/python/Aknihiro93.py
new file mode 100644
index 0000000000..766eabb7d1
--- /dev/null
+++ b/Retos/Reto #37 - COLORES HEX Y RGB [Media]/python/Aknihiro93.py	
@@ -0,0 +1,19 @@
+def converter_rgb(r:int, g:int, b:int) -> str:
+    if r > 255 or g > 255 or b > 255:
+        print("Error")
+        return ""
+    result = "#"
+    for i in [r, g, b]:
+        temp = i
+        i = hex(i)[2:]
+        if temp < 16:
+            i = i.zfill(2)    
+        i = i.upper()
+        result = result + i
+    return result
+
+def converter_hex (HEX:str):
+    return f"(r: {int(HEX[1:3].lower(), 16)}, g: {int(HEX[3:5].lower(), 16)}, b: {int(HEX[5:7].lower(), 16)}"
+
+print(converter_rgb(255, 200, 33))
+print(converter_hex("#08C821"))
diff --git "a/Retos/Reto #40 - TABLA DE MULTIPLICAR [F\303\241cil]/go/Akihiro93.go" "b/Retos/Reto #40 - TABLA DE MULTIPLICAR [F\303\241cil]/go/Akihiro93.go"
new file mode 100644
index 0000000000..ab71f9ee4f
--- /dev/null
+++ "b/Retos/Reto #40 - TABLA DE MULTIPLICAR [F\303\241cil]/go/Akihiro93.go"	
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	var number int
+	fmt.Print("Introduce un numero: ")
+	fmt.Scanf("%d", &number)
+
+	for i := 1; i < 11; i++ {
+		result := number * i
+		fmt.Println(number ," x ", i, " = ", result)
+	}
+}
\ No newline at end of file
diff --git "a/Retos/Reto #40 - TABLA DE MULTIPLICAR [F\303\241cil]/python/Akihiro93.py" "b/Retos/Reto #40 - TABLA DE MULTIPLICAR [F\303\241cil]/python/Akihiro93.py"
new file mode 100644
index 0000000000..a2866c4aeb
--- /dev/null
+++ "b/Retos/Reto #40 - TABLA DE MULTIPLICAR [F\303\241cil]/python/Akihiro93.py"	
@@ -0,0 +1,10 @@
+while True:
+    try:
+        number = int(input("Introduce un numero: "))
+    except:
+        print("Error")
+    else:
+        break
+
+for i in range(1, 11):
+    print(f"{number} x {i} = {number * i}")
diff --git "a/Retos/Reto #47 - LA PALABRA DE 100 PUNTOS [F\303\241cil]/go/Akihiro93.go" "b/Retos/Reto #47 - LA PALABRA DE 100 PUNTOS [F\303\241cil]/go/Akihiro93.go"
new file mode 100644
index 0000000000..96b8dd0fc6
--- /dev/null
+++ "b/Retos/Reto #47 - LA PALABRA DE 100 PUNTOS [F\303\241cil]/go/Akihiro93.go"	
@@ -0,0 +1,41 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+func main() {
+	var word string
+	for {
+		var failed bool
+		fmt.Print("Introduce la palabra: ")
+		fmt.Scanf("%s", &word)
+
+		for _, v := range([]string{"1", "2", "3", "4", "5", "6", "7", "8", "9", "0"}) {
+			if strings.Contains(word, v) {
+				fmt.Println("Error")
+				failed = true 
+				break
+			}
+		}
+		if !failed {
+			break
+		}
+	}
+	word = strings.ToLower(word)
+
+	var result = 0
+	var dict = map[string]int {
+		"a": 1, "b": 2, "c": 3, "d": 4, "e": 5, "f": 6, "g": 7, "h": 8, "i": 9,
+		"j": 10, "k": 11, "l": 12, "m": 13, "n": 14, "ñ": 15, "o": 16, "p": 17,
+		"q": 18, "r": 19, "s": 20, "t": 21, "u": 22, "v": 23, "w": 24, "x": 25,
+		"y": 26, "z": 27,
+	}
+
+	for _, v := range word {
+		result += dict[string(v)]
+	}
+
+	fmt.Println(result)
+}
\ No newline at end of file
diff --git "a/Retos/Reto #47 - LA PALABRA DE 100 PUNTOS [F\303\241cil]/python/Akihiro93.py" "b/Retos/Reto #47 - LA PALABRA DE 100 PUNTOS [F\303\241cil]/python/Akihiro93.py"
new file mode 100644
index 0000000000..2624ab2c57
--- /dev/null
+++ "b/Retos/Reto #47 - LA PALABRA DE 100 PUNTOS [F\303\241cil]/python/Akihiro93.py"	
@@ -0,0 +1,22 @@
+while True:
+    word = input("Introduce la palabra: ")
+
+    for i in ["1", "2", "3", "4", "5", "6", "7", "8", "9", "0"]:
+        if i in word:
+            print("Error")
+            exit()
+    break
+
+dict_values = {
+    'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5, 'f': 6, 'g': 7, 'h': 8, 'i': 9,
+    'j': 10, 'k': 11, 'l': 12, 'm': 13, 'n': 14, 'ñ': 15, 'o': 16, 'p': 17,
+    'q': 18, 'r': 19, 's': 20, 't': 21, 'u': 22, 'v': 23, 'w': 24, 'x': 25,
+    'y': 26, 'z': 27
+}
+
+for i in word:
+    result = 0
+    for i in word.lower():
+        result += dict_values[i]
+
+print(result)
\ No newline at end of file