--- /dev/null
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+int main() {
+
+ srand(time(NULL));
+ int randValue = rand() % 5 + 1;
+
+ printf("[%d] Je suis la balle et je vole\n", getpid());
+
+ sleep(randValue);
+
+ return EXIT_SUCCESS;
+}