# include <stdio.h>

//
//  Program 5.1, Stephen Kochan, Programming in C.
//

int main ( void )
{
  int triangularNumber;

  triangularNumber = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8;

  printf ( "The eighth triangular number is %i\n", triangularNumber );

  return 0;
}