#include <stdio.h>
#include <stdlib.h>
int main(void)
{ int *x[3]; int i; int j;
  for (i = 0;i < 3;++i) {
    x[i] = (int *) malloc((i + 1) * sizeof(int));
    for (j = 0;j <= i;++j) scanf("%d",&x[i][j]);
  }
  x[0] = x[1]; x[1] = x[2];
  for (i = 0;i < 3;++i) {
    for (j = 0;j <= i;++j) printf("%d\n",x[i][j]);
  }
}