package main

import (
	"fmt"
)

func main() {
	var counts [10]int
	for i := 0; i < 6; i++ {
		var x int
		fmt.Scan(&x)
		counts[x]++
	}

	legLength := -1
	for i := 1; i <= 9; i++ {
		if counts[i] >= 4 {
			legLength = i
			break
		}
	}

	if legLength == -1 {
		fmt.Println("Alien")
		return
	}

	counts[legLength] -= 4

	elephant := false
	for i := 1; i <= 9; i++ {
		if counts[i] == 2 {
			elephant = true
			break
		}
	}

	if elephant {
		fmt.Println("Elephant")
	} else {
		fmt.Println("Bear")
	}
}