main(argc, argv) int argc; char *argv[]; { register int i; register char *cp; argc--; for(i=1; i<=argc; i++) { printf("%d: ",i); for(cp=argv[i]; *cp ; ++cp) { if (*cp&0200) putchar('@'); *cp &= 0177; if (*cp=='@') putchar('@'); putchar(*cp); } printf("\n"); } exit(0); } putchar(c) { write(1,&c,1); }