iCloud Calendar sync error 400 on OS X 10.10.2

An arcpy/python way to find like named layers in a gdb would be to use the string .find() method, see example below:

import os
commonSearchText = ['207900045', 'xyz', '1234']
workspace = "C:/Temp/New File Geodatabase.gdb"
for nameX in commonSearchText:
    foundLayersList = []
    walk = arcpy.da.Walk(workspace, datatype="FeatureClass")
    for dirpath, dirnames, filenames in walk:
        for filename in filenames:
            found = filename.find(nameX)
            if found >-1:
                foundLayersList.append(os.path.join(dirpath, filename))
    # next do something with two found layers in the foundLayers list....

Alternatively, you could do this in one line combining the if condition and in method:

# same code as noted above before walk statement
walk = arcpy.da.Walk(workspace, datatype="FeatureClass")
for dirpath, dirnames, filenames in walk:
    for filename in filenames:
        if commonSearchText in (filename):
            foundLayersList.append(os.path.join(dirpath, filename))
# ....

You could put all your common names in the commonSearchText list and loop over those if all layers are in one gdb.