n=int(input())
s=str(input())
s=list(s)
ans=[]
for i in range(0,n):
    ans.append(s[i])
hel=[]
for i in s:
    hel.append(i)
hel.reverse()
print(ans)
tries=1
ans.append(ans[0])
ans.pop(0)

#print(hel)
while (tries<2*n):
    print(ans)
    if ans==hel:
        print(tries)
        break

    if ans==s:
        print(-1)
        break
    tries+=1
    ans.append(ans[0])
    ans.pop(0)