import re
regex=r"[-+]?[0-9]*\.?[0-9]+(?:[eE][-+]?[0-9]+)?"
string="0.00000000000000000E0 0.00000000000000000E0 0.00000000000000000E0"
print(re.findall(regex,string))
aW1wb3J0IHJlCnJlZ2V4PXIiWy0rXT9bMC05XSpcLj9bMC05XSsoPzpbZUVdWy0rXT9bMC05XSspPyIKc3RyaW5nPSIwLjAwMDAwMDAwMDAwMDAwMDAwRTAgICAwLjAwMDAwMDAwMDAwMDAwMDAwRTAgICAwLjAwMDAwMDAwMDAwMDAwMDAwRTAiCnByaW50KHJlLmZpbmRhbGwocmVnZXgsc3RyaW5nKSk=