#include <stdio.h>
#define MAX 100

int main() {
  int i, j, k = 0, x, rows, cols, A[MAX], IA[MAX], JA[MAX], idx, count = 0;
  IA[0] = 0;
  printf("Rows and columns in matrix: ");
  scanf("%d %d", &rows, &cols);
  for(i = 0; i < rows; i++) {
    printf("Enter row #%d: \n", i+1);
    for(j = 0; j < cols; j++) {
      scanf("%d", &x);
      if(x) {
        A[k] = x;
        JA[k] = j;
        idx = ++k;
        ++count;
      }
      IA[i+1] = count;
    }
  }
  printf("A = [ ");
  for(i = 0; i < IA[idx]; i++) {
    printf("%d ", A[i]);
  }
  printf("]\nIA = [ ");
  for(i = 0; i < IA[idx]+1; i++) {
    printf("%d ", IA[i]);
  }
  printf("]\nJA = [ ");
  for(i = 0; i < IA[idx]; i++) {
    printf("%d ", JA[i]);
  }
  printf("]\n");

  return 0;
}