Task $2$: Write a Python function that accepts a list of numbers as input and returns six outputs. The function should produce three separate lists with the number of elements in each list: one list containing numbers that occur only once in the input list and another list containing numbers that occur twice and a third list containing numbers that occur more than two times. Please refer to the example output below: For the following list of numbers: $1,3,6,4,3,6,2,4,7,3,1,3,5,2,6,1$

There are $2$ numbers that occur only once: $7,5$

There are $2$ numbers that occur twice: $4,2$

There are $3$ numbers that occur more than two times: $1,3,6$