n = int(input())
s = str(input())
if n % 2 != 0:
    print("No")
else:
    sA = [s[i] for i in range(n) if i % 2 == 0]
    sB = [s[i] for i in range(n) if i % 2 != 0]
    print("Yes")
    for i in sA:
        print(i, end="")
    print(" ", end="")
    for i in sB:
        print(i, end="")