N,X = map(int,input().split())
C = list(map(int,input().split()))
XCP,XCM = [],[]
for c in C:
    num = X-c
    if num >= 0:
        XCP.append(num)
    else:
        XCM.append(num)

if XCP == [] or XCM == []:
    print("No")
else:
    sumP,sumM = sum(XCP),sum(XCM)
    if sumP%sumM == 0:
        print("Yes")
    else:
        print("No")