--- /dev/null
+#include <stdio.h>
+#include <math.h>
+#include <string.h>
+
+#define BUF_SIZ 100000
+#define LINE_LENGTH 72
+// ssize_t getline(char **lineptr, size_t *n, FILE *stream);
+
+int main(int argc, char ** argv){
+ char buffer;
+ while (read(0,&buffer,1)) {
+ buffer|=128;
+ write(1,&buffer,1);
+ }
+
+} // main()
+// Ende
+