Temperature Conversion

You are given a string representing a temperature value followed by its unit. The unit can either be C (Celsius) or F (Fahrenheit). Your task is to convert the temperature from Celsius to Fahrenheit or vice versa.

The formulas used for conversion are given below in \( \LaTeX \) notation:

• \( F = \frac{9}{5} \times C + 32 \)
• \( C = \frac{5}{9} \times (F - 32) \)

If the input format is invalid, or if the temperature value cannot be parsed, print "Invalid input".

inputFormat

The input consists of a single line containing a temperature string. The string includes a numerical value followed immediately by a unit character. The unit is either C or F.

outputFormat

The output is a single line containing the converted temperature value with its unit. The numerical value should be formatted to one decimal place. If the input is invalid, output exactly "Invalid input".

25C

77.0F