N=int(input())
S=list(input())
L1=[]
L2=[]
if N%2!=0:
    print("No")
    exit()
else:
    for i in range(0,N,2):
        L1.append(S[i])
    for i in range(1,N,2):
        L2.append(S[i])
print("Yes")
print("".join(L1),"".join(L2))