Intro/verse
--0--0--0----0-----0----0-0---------1-----1-| Repeat the alternating F and C
--1--1--1----1-----1----1-1---------1-----1-| Bass notes + chords one time
--0--0--0----0-----2----2-2---------2-----2-|
--2--2--2----2-----2----2-2---------3-----3-|
--3--3--3--2---3-0-0----0-0--0------3--3--3-|
----------------------3---------1---1-----1-|
[ Tab from: https://www.guitartabs.cc/tabs/c/cake/mexico_tab.html ]
Chorus
----1----1----3----3--0--0--0--0---------1-----1----3-----3-| After the G chord
----1----1----3----3--1--1--1--1---------1-----1----3-----3-| the second time
----2----2----0----0--0--0--0--0---------2-----2----0-----0-| around in the
----2----2----0----0--2--2--2--2---------2-----2----0-----0-| chorus simply
----3--3-3----2--2-2--3--3--3--3---------3--3--3----2--2--2-| play the intro
--1-1----1--3-3----3---------------0--1--1-----1--3-3-----3-| /verse again