An algorithm is shown in the pseudo-code below:
1 probes ← ['Voyager', 'NewHorizons']
2 probe1 ← 'Kepler-186f'
3 probe2 ← 'Rosetta'
4 OUTPUT probe2
5 OUTPUT LEN(probes)
6 signal_code ← SUBSTRING(3, 5, probe1)
7 OUTPUT signal_code
Note: SUBSTRING(start, length, string) extracts a section of a string starting at index start (where the first character is at index 0) for the given character length.
State the output of line 7 from this algorithm.