Делаю рандом на пик героев но почемуто герои повторяюся.

local integer array rand
local integer st = 1
local integer end = 5
local integer j = 1
local integer i = 5
local integer array cof
    set udg_RandomHero[1] = 'U00J'
    set udg_RandomHero[2] = 'U00W'
    set udg_RandomHero[3] = 'U00G'
    set udg_RandomHero[4] = 'H000'
    set udg_RandomHero[5] = 'U002'
    set udg_RandomHero[6] = 'U017'
    set udg_RandomHero[7] = 'H00D'
    set udg_RandomHero[8] = 'H00I'
    set udg_RandomHero[9] = 'O005'
    set udg_RandomHero[10] = 'O001'
    set udg_RandomHero[11] = 'O00E'
    set udg_RandomHero[12] = 'Obla'
    set udg_AR = 12
loop
exitwhen j > i
    set rand[j] = 0
    set cof[j] = 0
    set j = j + 1
endloop
loop
exitwhen st > end
if GetPlayerController(Player(st)) != MAP_CONTROL_USER or GetPlayerSlotState(Player(st)) != PLAYER_SLOT_STATE_PLAYING then
    loop
        set rand[st] = GetRandomInt(1, udg_AR)
        exitwhen cof[st] == 1
        if (st == 1) or ( st == 2 and rand[st] != rand[st - 1] ) or ( st == 3 and rand[st] != rand[st - 2] and rand[st] != rand[st - 1]) or (st == 4 and rand[st] != rand[st - 3] and rand[st] != rand[st - 2] and rand[st] != rand[st - 1] ) or ( st == 5 and rand[st] != rand[st - 4] and rand[st] != rand[st - 3] and rand[st] != rand[st - 2] and rand[st] != rand[st - 1]) then
        set cof[st] = 1
        set udg_HeroesMassive[st] = CreateUnitAtLoc( Player(st), udg_RandomHero[rand[st]], GetRectCenter(gg_rct_Start1), 0.00 )
        call PanCameraToTimedLocForPlayer( Player(st), GetRectCenter(gg_rct_Start1), 0 )
        call SelectUnitForPlayerSingle( udg_HeroesMassive[st], Player(st) )
        set j = 1
        set i = 10
        loop
        exitwhen j > i
        call SetPlayerTechMaxAllowed(Player(j), GetUnitTypeId(udg_HeroesMassive[st]), 0)
        set j = j + 1
        endloop
        call PauseUnit( udg_HeroesMassive[st], true )
        endif
    endloop
endif
set st = st + 1
endloop
endfunction