How many 7s are there in the full sequence which are followed by 3 but not preceded by 9?
4 3 7 9 1 6 7 3 9 5 4 9 7 3 5 3 7 3 1 6 7 3 6 9 9 7 3 4 8 3
1
2
2
3
3
4
4
5
How many 7s are there in the full sequence which are followed by 3 but not preceded by 9?
4 3 7 9 1 6 7 3 9 5 4 9 7 3 5 3 7 3 1 6 7 3 6 9 9 7 3 4 8 3