/* mp1.c by Douglas W. Jones */
#include <stdio.h>
#include "/mnt/nfs/clasnetappvm/fs3/dwjones/2630mp1.h"

int main() {
    int i = 0;
    int lastk = -1; /* this only matters if key[0] < -1 */
    for (;;) { /* for each successive key entry */
	int k = key[i];
	if (k == -1) break; /* the only loop exit */
	if (k >= 0) { /* positive keys */
	    putchar( text[k] ); /* produce one character */
	    lastk = k;
	} else { /* negative keys */
	    do { /* inner loop to produce string of characters */
		k = k + 1;
		lastk = lastk + 1;
	        putchar( text[lastk] );
	    } while (k < -1);
	}
	i = i + 1; /* move on to the next key */
    }
    return 0; /* return value is ignored */
}