diff --git a/The C Programming Language/1.18.c b/The C Programming Language/1.18.c
new file mode 100644
index 0000000..f216973
--- /dev/null
+++ b/The C Programming Language/1.18.c	
@@ -0,0 +1,53 @@
+#include <stdio.h>
+
+#define MAXLINE 10
+
+int _getline(char line[], int maxline);
+void trim(char to[], char from[], int from_head);
+
+main()
+{
+	char line[MAXLINE];
+	char trimmed[MAXLINE];
+
+	int head = _getline(line, MAXLINE);
+	trim(trimmed, line, head);
+
+	printf("[%s]\n", trimmed);
+
+	return 0;
+}
+
+int _getline(char s[], int lim)
+{
+	int c, i, j;
+	for (i = 0; (c = getchar()) != '\n'; ++i)
+	{
+		if (i < lim - 1)
+			s[i] = c;
+	}
+
+	j = i;
+	if (j > lim - 1)
+		j = lim - 1;
+	s[j] = '\0';
+	return j;
+}
+
+void trim(char to[], char from[], int from_head)
+{
+	int i;
+	int start_copying = 0;
+
+	for (i = from_head - 1; i >= 0; --i)
+	{
+		if (start_copying == 0 && from[i] != '\t' && from[i] != ' ')
+		{
+			to[i+1] = '\0';
+			start_copying = 1;
+		}
+	
+		if (start_copying == 1)
+			to[i] = from[i];
+	}
+}