SetWorkingDir %A_ScriptDir%

FileRead, numTxt, % A_ScriptDir "\2.txt"

NumArray := StrSplit(numTxt, "`r`n")

for i, j in NumArray {
    for k, l in NumArray {
        for m, n in NumArray {
            if (j + l + n = 2020) {
                Clipboard := j * l * n
                breakLoop := 1
                Break
            }
        }
        if breakLoop
            Break
    }
    if breakLoop
        Break
}