diff --git a/level06/Ressources/test.c b/level06/Ressources/test.c
new file mode 100644
index 0000000..9897b40
--- /dev/null
+++ b/level06/Ressources/test.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main(void)
+{ 
+        char param1[9] = "gbrochar";
+        unsigned int local_14 = (param1[3] ^ 0x1337) + 0x5EEDED;
+        for(int local_18 = 0; local_18 < 8; local_18++) {
+                if (param1[local_18] < 32 || param1[local_18] > 127) {
+                        return 1;
+                }
+                local_14 += (param1[local_18] ^ local_14) % 0x539;
+        }
+        printf("%s serial number is %u", param1, local_14);
+        return 0;
+}
diff --git a/level06/flag b/level06/flag
new file mode 100644
index 0000000..14f1943
--- /dev/null
+++ b/level06/flag
@@ -0,0 +1 @@
+GbcPDRgsFK77LNnnuh7QyFYA2942Gp8yKj9KrWD8
diff --git a/level07/Ressources/level07 b/level07/Ressources/level07
new file mode 100755
index 0000000..d56fd3c
Binary files /dev/null and b/level07/Ressources/level07 differ