def swap(sequence, i, j):
    """Swaps elements at specified indices in a sequence.
    """
    temp = sequence[i]
    sequence[i] = sequence[j]
    sequence[j] = temp

def selection_sort(sequence):
    """Returns the sequence, sorted in ascending order.
    """
    seq_len = len(sequence)
    if seq_len > 1:
        for i in range(seq_len-1):
            min_index = i
            for j in range(i+1, seq_len):
                if sequence[min_index] > sequence[j]:
                    min_index = j
            swap(sequence, i, min_index)
    return sequence

seq = list("ASORTINGEXAMPLE")
print(seq)
l1 = selection_sort(seq)
print(l1)