diff --git a/The C Programming Language/1.12.c b/The C Programming Language/1.12.c
new file mode 100644
index 0000000..9d63cbb
--- /dev/null
+++ b/The C Programming Language/1.12.c	
@@ -0,0 +1,35 @@
+#include <stdio.h>
+
+#define IN 1
+#define OUT 0
+
+main()
+{
+	int c, state, word_ending;
+	state = 0;
+	while ((c = getchar()) != EOF)
+	{
+		word_ending = (c == ' ' || c == '\n' || c == '\t');
+		if (state == IN)
+		{
+			if (word_ending)
+			{
+				state = OUT;
+				putchar('\n');
+			}
+			else
+			{
+				putchar(c);
+			}
+		}
+		else
+		{
+			if (!word_ending)
+			{
+				state = IN;
+				putchar(c);
+			}
+		}
+	}
+}
+