How to merge functions correctly in cmd GTR LSS?

Question

cmd/bat

THE CODE

set cntStart=1
set cntEnd=200
set number=
set addZero=2
setlocal enabledelayedexpansion
for /l %%i in (%cntStart%,1,=%cntEnd%) do (
  if %%i LSS 10 (
    if %addZero% EQU 1 (
      set number=0%%i
    ) else if %addZero% EQU 2 (
      set number=00%%i
    ) else (
      set number=%%i
    )
  ) else if (%%i GTR 10 & %%i LSS 100 (
    if %addZero% EQU 1 (
      set number=%%i
    ) else if %addZero% EQU 2 (
      set number=0%%i
    ) else (
      set number=%%i
    )

  ) else (
    set number=%%i
  )

This line is of interest
) else if (%%i GTR 10 & %%i LSS 100 (
Condition if the variable is greater than 10 and less than 100 then further down the list
Now the command does not run at all

Answer 1

Nest IFs
IF CONDITION 1 (
IF CONDITION2 COMMAND A
)

else if %%i LSS 100 (
   	if %%i GEQ 10 (
      if %addZero% EQU 1 (
        set number=%%i
      ) else if %addZero% EQU 2 (
        set number=0%%i
      ) else (
        set number=%%i
      )
    )
  )