d(4)-5=-1→25=y m(13)-5=8=h w(23)-5=18=r a(1)-5=-4→22=v k(11)-5=6=f → yhrvf
t(20)-5=15=o k(11)-5=6=f w(23)-5=18=r n(14)-5=9=i → ofri tkwn-dmwak-mn-ajly
So code letter +1: t(20)+1=21=u k(11)+1=12=l w(23)+1=24=x n(14)+1=15=o → ulxo — no. on the given code Code: t k w n - d m w a k - m n - a j l y k(11) → i(9)
t(20)-3=17=q k(11)-3=8=h w(23)-3=20=t n(14)-3=11=k → qhtk w(23) → u(21)
a(1)-5=-4→22=v j(10)-5=5=e l(12)-5=7=g y(25)-5=20=t → vegt
Better: Try : t(20) → r(18), k(11) → i(9), w(23) → u(21), n(14) → l(12) → riul — no. Step 3: Try known shift patterns from similar codes This looks like a simple Caesar shift of -1 (left shift) on each letter.