def aval(n):
    t = 0
    for i in range(1,n+1):
        if n%i==0:
            t = t+1
    if t==2:
        return True
    else:
        return False
def main(n):
    for i in range(2,n-3):
        if aval(i):
            for j in range(2,n-i+1):
                if aval(j) and aval(n-i-j):
                    print(i)
                    print(j)
                    print(n-i-j)
                    return
main(int(input()))