how do I pass p[0] to a function and print it’s content?

#include "stdio.h"
    
void setupMidiOctave(int *p[]) {
    int a[] = {1, 2, 3};
    int b[] = {4, 5, 6};

    p[0]    = &a[0];
    p[1]    = &b[0];
}

void prt(int *a) {
    printf("%dn", a[1]);
}

int main(void) {
    int *p[2];
    setupMidiOctave(p);
    printf("%dn", p[0][0]);
    prt(p[0]); <--------- not printing out
    return 0;
}