a, x, a, x, y.
screen and quickly press x(2), a(2), b.
screen and quickly press x, y, x(2), a.
screen and quickly press x, a, x, b, y.
screen and quickly press a, b(2), x(2).
screen and quickly press x, b, x(2), y.
screen and quickly press b(3), y, x.
screen and quickly press b, a, b, x, a.
screen and quickly press y, b, x, y, x.
screen and quickly press x(3), y, b.
screen and quickly press x, y, x, y, x.
screen and quickly press a, x, b, y(2).
screen and quickly press y, x, a, b, x.
screen and quickly press b(2), y(2), a.
screen and quickly press x, y, b, a, x.
screen and quickly press y, x, a(2), 