import re
coordstr = '102030N0102030E203040N0203040E304050N0304050E405060N0405060E'
coords = re.findall(r'\d+[NS]\d+[EW]', coordstr)
for x in coords:
print(x)
aW1wb3J0IHJlCmNvb3Jkc3RyID0gJzEwMjAzME4wMTAyMDMwRTIwMzA0ME4wMjAzMDQwRTMwNDA1ME4wMzA0MDUwRTQwNTA2ME4wNDA1MDYwRScKY29vcmRzID0gcmUuZmluZGFsbChyJ1xkK1tOU11cZCtbRVddJywgY29vcmRzdHIpCmZvciB4IGluIGNvb3JkczoKICAgIHByaW50KHgpCg==