you give 0indexed string s lowercase english letter indice digit odd indicesthere function shiftc x c character x digit return xth character cFor example shifta 5 f shiftx 0 xFor odd index want replace digit si shiftsi1 siReturn s replace digit it guarantee shiftsi1 si exceed z Example 1input s a1c1e1output abcdefexplanation the digit replace follow s1 shifta1 b s3 shiftc1 d s5 shifte1 fExample 2input s a1b2c3d4eOutput abbdcfdheexplanation the digit replace follow s1 shifta1 b s3 shiftb2 d s5 shiftc3 f s7 shiftd4 h Constraints1 slength 100s consist lowercase english letter digitsshiftsi1 si z odd index