P = int(input())

f = 0
for i in range(1, P+1):
    if i ** 2 > P or f == 1:
        break
    for j in range(i, P+1):
        if i ** 2 + j ** 2 == P:
            f = 1
            break

if f:
    print("Yes")
else:
    print("No")