A program processes sensor calibration data using the following variable assignments:

sensor_id ← 'A-9082-XT_Primary'
mode ← 'HighRes'
calibration ← 'Offset: -12.4'

The following statements are then executed:

x ← SUBSTRING(2, 4, sensor_id)
y ← POSITION(calibration, ':')
result ← x + SUBSTRING(y + 2, 5, calibration)

What is the value of result?

Note:

• SUBSTRING(start, length, string) extracts a portion of a string starting at the 0-based index start with the specified length. For example, SUBSTRING(1, 3, 'computer') returns 'omp'.
• POSITION(string, character) returns the 0-based index of the first occurrence of character in string.
• + performs string concatenation when applied to string values.