# import sequtils, strutils, strscans, algorithm, math, future, sets, queues, tables # for yukicoder (0.17.1) import sequtils, strutils, algorithm, math, future, sets, queues, tables # for AtCoder (0.13.0) template getLine: string = stdin.readLine template getInteger: int = getLine.parseInt template getBiggestInteger: int64 = getLine.parseBiggestInt template getIntSeq: seq[int] = getLine.split.map(parseInt) template getBigIntSeq: seq[int64] = getLine.split.map(parseBiggestInt) when isMainModule: let N = getInteger var cnt = @[@[0, 0], @[0, 0]] for _ in 0..<N: let tmp = getIntSeq cnt[tmp[0] mod 2][tmp[1] mod 2].inc echo(if cnt.mapIt(it.mapIt(it div 2).sum).sum mod 2 == 1: "Alice" else: "Bob")