fork download 
import re
texts = ['20220213-0000-FSC-814-SC_VIRG_REFBAL_PRES_NPMINMAX-v1.xml',
'20220213-0000-F814-SC_VIRG_REFBAL_PRES_NPMINMAX-v1.xml']
pattern = r'F(?:SC)?-?(\d{3})'
for text in texts:
	match = re.search(pattern, text)
	if match:
		print (match.group(1))
Success #stdin #stdout 0.03s 9592KB
comments (?)
stdin 
Standard input is empty
stdout 
814
814
https://ideone.com/7UzGmW
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
secret

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