In the sequence given below the sum of the two digits which immediately precede the digit '3' exceeds in some cases the sum of the two digit which immediately follow the digit 3, and the sum of the two digit which immediately follow the digit 5 exceeds in some cases the sum of the two digits which immediately precede the digit 5. How many such 3's and 5's together are there ?
3 4 4 5 3 3 1 2 9 5 4 3 9 3 3 8 5 4 5 3 5 5 5 9 2 7 8 1
1) 4
2) 5
3) 6
4) More than 6
5) None of these

Explanation

3, 6