new file structure according to subject

C/2_Grace/Grace_exploded.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#define xstr(s) #s
+#define str(s) xstr(s)
+#define MAIN(s) \
+int main() \
+{ \
+	char *before = "#include <stdio.h>\n#define xstr(s) #s\n#define str(s) xstr(s)\n#define MAIN(s) "; \
+	char *quine = s; \
+	char *after = "\n/*\n	comment\n*/\nMAIN(str(MAIN(s)))\n"; \
+	FILE *file = fopen("Grace_kid.c", "w"); \
+	fprintf(file, "%s%s%s", before, quine, after); \
+	fclose(file); \
+	return 0; \
+}
+/*
+	comment
+*/
+MAIN(str(MAIN(s)))