#チェック
n,x,m=map(int,input().split())
a=list(map(int,input().split()))
flag=1
if not (1<=n<=2*10**5):flag=0
if not (1<=x<=10**9):flag=0
if not (0<=m<=10**9):flag=0
if not (1<=min(a) and max(a)<=10**9):flag=0
if len(a)!=n:flag=0
if flag==0:print(aaa)