#include <stdio.h>
int main (void) {
int a [] = { 0, 32, 15, 19, 4, 21, 2, 25, 17, 34, 6, 27, 13, 36, 11, 30, 8, 23, 10, 5, 24, 16, 33, 1, 20, 14, 31, 9, 22, 18, 29, 7, 28, 12, 35, 3, 26, -1};
int b [1024];
int i;
int n;
int c;
for (i = 0; a [i] != -1; i++) {
printf ("%4i %4i\n", i, a [i]);
b [i] = i;
}
n = i;
c = 0;
for (i = 0; i < (n/2); i++) {
c += a [i];
}
printf ("%i\n", c);
c = 0;
for (; i < n; i++) {
c += a [i];
}
printf ("%i\n", c);
c = 0;
for (i = 0; i < (n/4); i++) {
c += a [i];
}
printf ("%i\n", c);
c = 0;
for (i = n/4; i < 2*(n/4); i++) {
c += a [i];
}
printf ("%i\n", c);
c = 0;
for (i = 2*(n/4); i < 2*(n/4)+(n/4); i++) {
c += a [i];
}
printf ("%i\n", c);
c = 0;
for (i = 3*(n/4); i < n; i++) {
c += a [i];
}
printf ("%i\n", c);
return 0;
}