the B programming language.

main() {
    extrn a, b, c, d;
    put2char(a,b);
    put2char(c,d);
}

put2char(x,y) {
putchar(x);
putchar(y);
}

a 'hell'; b 'o, w'; c 'orld'; d '!*n';

discuss: B programming language.