x=int(input())

LIST=[]

for i in range(10000123):
    if (i*i)%1000000==x%(1000000):
        LIST.append(i)
        
for i in range(1000123):
    for l in LIST:
        y=l+i*1000000

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

print("NO")