string = 'KKKKKKKEEEEEERRRRRRTTTTJJJJJJJTTTZZZZZZZZZZZRRRRR'

print(string)
label = 2
offset = 1
for i in range(len(string)):
    try:
        if string[i] != string[i+1]:
            print(f'{label:<{offset}}', end='')
            offset = 1
            label += 2        
        else:
            offset += 1
    except IndexError:
        print(f'{label:<{offset}}')