}

int polyt(string dna, int N)
{

	int totalpoly = 0;
	int tcounter = 0;

	for(int i=0;dna[i]!='\0';i++)
	{
		if (dna[i] != 't')
		{
			tcounter = 0;
		}
		if(dna[i] == 't')
		{
			tcounter++;
		}
		if ((tcounter>=N) && (dna[i+1] != 't'))
		{
			totalpoly++;;
		}


	}
	return totalpoly;

}