#include <stdio.h>
#include <stdlib.h>
 
#define N 21
 
int main() {
    int seq[N] = {-4, -7, -1, 4, -6, 1, -5, 5, 2, 9, -3, 8, 3, 7, -8, 6, -9, -10, 0, -2, 10};
 
    qsort(seq, N, sizeof(seq[0]),(int (*)(const void *, const void *))({
         int hi_im_lambda (const int* x, const int* y) { return abs(*x) - abs(*y); }
         hi_im_lambda;
         }));
 
    unsigned i;
    for (i = 0; i < N; ++i)
        printf("%3d\n", seq[i]);
 
    return 0;
}
 

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