type colors = (red, green, blue); var grades : array [1..120] of integer; temperatures : array [-5..5] of real; table : array [0..10,0..20] of real; screen : array [0..479,0..639] of array [red..blue] of integer;
grades[15] := 9; temperatures[-2] := 37.8; table[3,2] := 12.3; screen[5,7][red] := 12;