x=int(input())

LIST=[]

for i in range(10000123):
    if (i*i)%100000==x%(100000):
        LIST.append(i)
        
for i in range(10000123):
    for l in LIST:
        y=l+i*100000

        if (y*y)%1000000000000==x:
            print("YES")
            exit()

print("NO")