hi$,$ please soneome help me understand this java question and exolain me the process to solve this $.$ i didn$$t understand the question and the picture of input here

Coach seating diagrams, lower deck:

$\backslash$table$[[$X$,3,3,3,3,3,3,3,3,3,3,3,3,3,$X$,$X$],[$X$,2,2,2,2,2,2,2,2,2,2,2,2,2,2,$X$],[$D$,1,1,1,1,1,1,1,1,1,1,1,1,1,,$W$],[$D$,0,0,0,0,0,0,0,0,0,0,0,0,0,0,$W$]]$

upper deck:

$\backslash$table$[[3,3,3,3,3,3,3,3,3,3,3,3,3,3,x,x$e picture ofnthat question