Create a program in Python that reads three grades from a student and the weight of each grade and presents this student's final average.

$-$ The input is a line containing three float numbers n$1,$ n$2$ and n$3$ which represent a student's grades.

$-$ The second line of the input contains three integers w$1,$ w$2$ and w$3$ which represent the weights of each note.

$-$ The output must be a line with the student's weighted average with six decimal places.

$-$ It is not necessary to validate that input values are within the defined types and ranges.

In the third example grade $9\mathrm{.}1$ has weight $1$; grade $5\mathrm{.}1$ has weight $2$; and grade $5\mathrm{.}1$ has weight $3.$ So$,$ the resulting weighted average is $5\mathrm{.}766667.$

Tip! To read more than one value per line use the split$()$ function as shown below. To read $2$ or more values on the same line: x$,$ y$,$ z $=$ input$().$split$()$

For example: