#include "stdio.h"
#define M(Code) main(){FILE* fp = fopen("source.c", "w");fprintf(fp,"#include \"stdio.h\"\n#define M(Code) %s\nM(%s)\n",#Code,#Code);fclose(fp);}
M(main(){FILE* fp = fopen("source.c", "w");fprintf(fp,"#include \"stdio.h\"\n#define M(Code) %s\nM(%s)\n",#Code,#Code);fclose(fp);})