How to get same values into List(of Size)

Hi :wave:

please help ....

_framelayersize is a LIST(of Size) ..

1) values are ..
_framelayersize .Item (0) = {10,10}
_framelayersize .Item (1) = {10,10}
_framelayersize .Item (2) = {10,10}
_framelayersize .Item (3) = {10,10}
Question is :
how to check all values are same in _framelayersize



2) values are ..
_framelayersize .Item (0) = {10,10}
_framelayersize .Item (1) = {12,10}
_framelayersize .Item (2) = {10,10}
_framelayersize .Item (3) = {10,12}
Question is :
how to get same values and differented one....

and how to get same width value from this _framelayersize