diff --git a/du6/program.c b/du6/program.c
new file mode 100644
index 0000000..4fdee7c
--- /dev/null
+++ b/du6/program.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+typedef struct tree{
+	char value[256];
+	struct tree* left; //ano
+	struct tree* right; // nie
+}Tree;
+
+void trim_newline(char *str){
+	size_t len = strlen(str);
+	if(len > 0 && (str[len -1] == '\n')){
+		str[len - 1] = '\0';
+	}
+}