Type the program's output

public class Costcalculator $\{$

public static int calculatecost$($int age, int units$)\{$ int cost;

if $($age $>18$ & d age $<mtext\; id="EditorElement\_1704387"></mtext><mn\; id="EditorElement\_1704388">2</mn><mn\; id="EditorElement\_1704389">9</mn><mi\; id="EditorElement\_1704390">)</mi><mtext\; id="EditorElement\_1704391"></mtext><mi\; id="EditorElement\_1704392">\{</mi>$

if $($units $>1)\{$

cost units $-1$