Countries of the world (A-Z)
A-B A-B
C-D C-D
E-F E-F
G-H G-H
I-J I-J
K-L K-L
M-N M-N
O-P O-P
Q-R Q-R
S-T S-T
U-V U-V
W-X W-X
Y-Z Y-Z