#include <stdio.h>

#define SIZE 16

void plot( int arr[][SIZE] ) {
  int x, y;
  for( x = SIZE - 1; x >= 0; x-- ) {
    for ( y = 0; y < SIZE; y++ ) {
      if ( arr[ x ][ y ] ) {
	printf( "." );
      } else {
	printf( " " );
      }
    }
    printf( "\n" );
  }
}

// plotting y = x + 1
int main() {
  int arr[ SIZE ][ SIZE ] =
    { { 0, 1 },
      { 0, 0, 1 },
      { 0, 0, 0, 1 },
      { 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } };
  plot( arr );
  
  return 0;
}