not long ago Vlad come interesting function f_axleftlfloorfracxarightrfloor x bmod leftlfloorfracxarightrfloor fracxa rounded x bmod remainder integer division x aFor example a3 x11 value f_311 leftlfloorfrac113rightrfloor 11 bmod 3 3 2 5the number fix know Vlad Help Vlad find maximum value f_ax x integer value l r inclusive l le x le r