diff --git a/tools/essai_faces.c b/tools/essai_faces.c
new file mode 100644
index 0000000..f9688a8
--- /dev/null
+++ b/tools/essai_faces.c
@@ -0,0 +1,44 @@
+/*
+ */
+
+#include  <stdio.h>
+#include  <string.h>
+#include  <stdlib.h>
+
+int essai_lecture_face(char *str)
+{
+char		*buffer, *ptr;
+int		bar;
+int		A, B, C;
+
+printf("-------- '%s'\n", str);
+buffer = ptr = strdup(str);
+for (bar = 0;;) {
+	ptr = strtok(ptr, " \t");
+	if (NULL != ptr) {
+		printf("\t%2d     '%s'\n", bar, ptr);
+		ptr = NULL;
+		bar++;
+		}
+	else break;
+	}
+/*
+ * so, here, we know the number of thing to decipher
+ */
+
+free(buffer);
+printf(" ->  %d\n", bar);
+
+return 0;
+}
+
+int main(int argc, char *argv[])
+{
+int		foo, bar;
+
+foo = essai_lecture_face("3 14 159");
+foo = essai_lecture_face("2 4 6 8");
+foo = essai_lecture_face("0/10 1/11 2/12");
+
+return 0;
+}