text: Marks the last poof occurence with same count
code: r = ( int ) ( n / math . floor ( n / l ) ) ; NEW_LINE x = ( ( ( ( r % m ) * ( ( r + 1 ) % m ) ) / 2 ) % m ) ; NEW_LINE y = ( ( ( ( l % m ) * ( ( l - 1 ) % m ) ) / 2 ) % m ) ; NEW_LINE p = ( int ) ( ( n / l ) % m ) ; NEW_LINE