A cash register keeps three log files: customers.txt$,$ payments.txt and taxes.txt$.$ Together, the files compose the transactions run on the register.

Write some code that reads the files line by line and displays for each $,$ $$,\%.$ Make sure to display when there is bad data in any of the files with a $?,$ and to display a message if any of the files are missing.

In the case of customers.txt$,$ if the line is empty display $?$; in the case of payments.txt$,$ if the line is not a number or is empty display $?$; in the case of taxes.txt$,$ if the line is not a number, is a number but not between $0$ and $1$ or is empty display $?.$

Sample Run $($everything ok$)$

James Stirling, $$21\mathrm{.}99,24\%$

Mark Lucas, $$102\mathrm{.}47,11\%$

Sherley Moss, $$1\mathrm{.}99,24\%$

Sample Run $($bad data$)$

James Stirling, $$21\mathrm{.}99,24\%$

Mark Lucas, $$?,11\%$

Sherley Moss, $$1\mathrm{.}99,?\%$

$?,$ $$0\mathrm{.}99,?\%$

Sample Run $($missing file$)$

Could not open register files.