diff --git a/0x0B-more_malloc_free/1-main.c b/0x0B-more_malloc_free/1-main.c
new file mode 100644
index 0000000..18d499e
--- /dev/null
+++ b/0x0B-more_malloc_free/1-main.c
@@ -0,0 +1,18 @@
+#include "holberton.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * main - check the code for Holberton School students.
+ *
+ * Return: Always 0.
+ */
+int main(void)
+{
+    char *concat;
+
+    concat = string_nconcat("Holberton ", "School !!!", 6);
+    printf("%s\n", concat);
+    free(concat);
+    return (0);
+}
diff --git a/0x0B-more_malloc_free/1-string_nconcat.c b/0x0B-more_malloc_free/1-string_nconcat.c
new file mode 100644
index 0000000..f578e0a
--- /dev/null
+++ b/0x0B-more_malloc_free/1-string_nconcat.c
@@ -0,0 +1,54 @@
+#include "holberton.h"
+
+/**
+ * _strlen - measures the length of a string.
+ * Descritpion: measures the string s.
+ * @s: string to be messured/
+ * Return: returns length of s.
+ */
+unsigned int _strlen(char *s)
+{
+	unsigned int count;
+
+	count = 0;
+	while (s[count] != '\0')
+	{
+		count++;
+	}
+	return (count);
+}
+
+/**
+ * string_nconcat - cats two strings by amount n.
+ * @s1: string 1.
+ * @s2: string 2.
+ * @n: amount to take.
+ * Return: returns pointer to new string, NULL on fail.
+ */
+char *string_nconcat(char *s1, char *s2, unsigned int n)
+{
+	char *temp;
+	unsigned int h, i, size;
+
+	if (s1 == NULL)
+		s1 = "";
+	if (s2 == NULL)
+		s2 = "";
+
+	if (n > _strlen(s2))
+		size = _strlen(s1) + _strlen(s2);
+	else
+		size = _strlen(s1) + n;
+
+	temp = malloc((size + 1) * sizeof(char));
+	if (temp == NULL)
+		return (NULL);
+
+	for (h = 0; s1[h] != '\0'; h++)
+		temp[h] = s1[h];
+	for (i = 0; h < size && s2[i] != '\0'; i++, h++)
+		temp[h] = s2[i];
+
+	temp[h] = '\0';
+	return (temp);
+}
diff --git a/0x0B-more_malloc_free/b b/0x0B-more_malloc_free/b
new file mode 100755
index 0000000..54c335d
Binary files /dev/null and b/0x0B-more_malloc_free/b differ
diff --git a/0x0B-more_malloc_free/holberton.h b/0x0B-more_malloc_free/holberton.h
index 0b0248c..ee82061 100644
--- a/0x0B-more_malloc_free/holberton.h
+++ b/0x0B-more_malloc_free/holberton.h
@@ -6,5 +6,6 @@
 
 void *malloc_checked(unsigned int b);
 int _putchar(char c);
+char *string_nconcat(char *s1, char *s2, unsigned int n);
 
 #endif