If the device on the right is viewed head-on, while the one on the left is angled facing rightward, and both devices have the screen slid up to show the keyboard.
return devices ;return #1 on the  right ;return if  #2 is viewed head-on ;return #1 on the  left ;return if  #4 is angled facing rightward ;return screens of #1 ;return keyboard ;return #6 slid up to  show #7 ;return number of  #1 ;return number of  #8 ;return if  #9 is equal to  #10 ;return if  both  #3 and #5 are true ;return if  both  #11 and #12 are true
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