Stage 1:
'Left and Right Shift', 'Upper-Left' and 'A'.
Stage 2:
'Left and Right Shift', 'Upper-Left' and 'B'.
Stage 3:
'Left and Right Shift', 'Upper-Right' and 'C'.
Stage 4:
'Left and Right Shift', 'Upper-Right' and 'X'.
Stage 5:
'Left and Right Shift', 'Up' and 'Y'.