n = int(input())
S = input()

if len(S) % 2 == 0:
    a = []
    b = []

    for i,c in enumerate(S):
        if i % 2 == 0:
            a.append(c)
        else:
            b.append(c)

    print ("Yes")
    print ("".join(a),"".join(b))

else:
    print ("No")