Rotations

import sys




def main():
    s = input()
    ls = len(s)

    (i, c) = min(enumerate(s), key=lambda x: x[1])
    aa = []
    for j in range(ls):
        if s[j] == c:
            aa.append(j)

    for i in range(1, ls):
        l = list(map(lambda x: (x, s[(x+i)%ls]), aa))
        (j, x) = min(l, key=lambda x: x[1])

        bb=[a for a in aa if s[(a+i)%ls] == x]
        aa=bb
        
        bb=[]
        for k in range(0, len(aa)):
            if k == 0 or aa[k] != aa[k-1] + 1:
                bb.append(aa[k])
        aa=bb
        bb=[]
        for k in range(0, len(aa)):
            if k==0 or k==len(aa)-1 or (aa[k] != aa[k-1] + i and aa[k+1] != aa[k] + i) :
                bb.append(aa[k])
        aa=bb
        if len(aa) == 1:
            break

    x = aa[0]
    print(s[x:], s[:x], sep='')

if __name__ == "__main__":
    main()

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: TIME LIMIT EXCEEDED

Test 7

Verdict: TIME LIMIT EXCEEDED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED