#422. Words until stop
Words come one on each line. Stop when the word `stop` comes. How many words were there before `stop`?
### Input
Words, the last one is `stop`.
### Output
A number.
Examples
Input
dog cat sun cat cat dog stop
Output
6
Input
dog cat cat stop
Output
3
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.