A program uses standard pseudocode string handling operations where string.substring(start, length) extracts a substring starting at the 0-based index start for a length of length characters.

Consider the following code segment:

prefix ← "SYS-204-A"
suffix ← "West-Grid"
new_code ← prefix.substring(4, 3) + suffix.substring(0, 4)

What is the value stored in the variable new_code after this code has executed?