// use your print and rand function instead
#include <stdio.h> // printf, puts
#include <stdlib.h> // rand
 
unsigned randto(unsigned n) {
    unsigned r, hi = (RAND_MAX / n) * n; // avoid
    do r = rand(); while (r >= hi);      // bias
    return r % n;
}
 
unsigned rrand(unsigned lo, unsigned hi) {
    return lo + randto(hi - lo + 1);
}
 
int main(void) {
    for (unsigned k = 0; k < 100; k++) {
        printf("%d ", rrand(10, 99));
    }
    puts("");
}
 

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