A a a a a a a a a aB b b b b b b b b bC c c c c c c c c c

D d d d d d d d d dE e e e e e e e e eF f f f f f f f f f

G g g g g g g g g gH h h h h h h h h hI i i i i i i i i i

J j j j a a a a a aK b b b b b b b b bL c c c c c c c c c

Ma a a a a a a a aN b b b b b b b b bN c c c c c c c c c

O a a a a a a a a aP b b b b b b b b bQ c c c c c c c c c

R a a a a a a a a aS b b b b b b b b bT c c c c c c c c c

U a a a a a a a a aV b b b b b b b b bW c c c c c c c c c

X a a a a a a a a aY b b b b b b b b bZ c c c c c c c c c