Rotations

import sys




def main():
    
    s = input()
    
    (i, c) = min(enumerate(s), key=lambda x: x[1])
    a = []
    for j in range(len(s)):
        if s[j] == c:
            a.append((j, s[j:] + s[:j]))

    (x, y) = min(a, key=lambda x: x[1])

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

if __name__ == "__main__":
    main()

Test 1

Verdict: RUNTIME ERROR

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: RUNTIME ERROR

Test 6

Verdict: RUNTIME ERROR

Test 7

Verdict: RUNTIME ERROR

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: RUNTIME ERROR