c# function to format measurement string

write a function to standardize format of a measurement string in feet and inches. - result should be in this format: [feet]'[inches] x [feet]" x [inches]" example: L x W 3'6" x 5'6" = 3'6" x 5'6" 5' x 8' = 5'0" x 8'0" 5'4" x 8' = 5'4" x 8'0" 5' x 8'5" = 5'0" x 8'5" 9" x 6" = 0'9" x 0'6" *9" x 6" round= *0'9" x 0'6" round L x W x H 5'4" x 8' x 5' = 5'4" x 8'0" x 5'0" 5'4" x 8' x 5'2" = 5'4" x 8'0" x 5'2" string teststring = "abcdefg 5'4" x 8' x 5'2" test "; // expected output: abcdefg 5'4" x 8'0" x 5'2" test string FormatFeetInches(string input);