I didn't use the top left section at all. Curious what the intended use of that bit is!
Lbh pna perngr n oevqtr npebff gur tnc gb gur ohggba ng gur gbc bs gur znc. Gura lbh whfg arrq gb trg gur oybpx va gur gbc evtug bss vgf yrqtr naq vagb gur oynpx G funcr. Gura lbh pna chfu vg hcjneqf naq npebff fb gung vg snyyf bhg bs gur G naq pna or chfurq npebff gur oevqtr ba gb gur ohggba.