import re
regex = r"^\s*\w+(?: \d{2}){3}\s*"
test_str = "Mywebsite 21 12 34 have 10000 traffic"
result = re.sub(regex, "", test_str, 0, re.MULTILINE)
print (result)
aW1wb3J0IHJlCgpyZWdleCA9IHIiXlxzKlx3Kyg/OiBcZHsyfSl7M31ccyoiCnRlc3Rfc3RyID0gIk15d2Vic2l0ZSAyMSAxMiAzNCBoYXZlIDEwMDAwIHRyYWZmaWMiCnJlc3VsdCA9IHJlLnN1YihyZWdleCwgIiIsIHRlc3Rfc3RyLCAwLCByZS5NVUxUSUxJTkUpCnByaW50IChyZXN1bHQpCgo=