import numpy as np

text = 'привет братан с пикабу'

dictionary ={

        0:'й',
        1:'ц',
        2:'у',
        3:'к',
        4:'е',
        5:'н',
        6:'г',
        7:'ш',
        8:'щ',
        9:'з',
        10:'х',
        11:'ф',
        12:'ы',
        13:'в',
        14:'а',
        15:'п',
        16:'р',
        17:'о',
        18:'л',
        19:'д',
        20:'ж',
        21:'э',
        22:'я',
        23:'ч',
        24:'с',
        25:'м',
        26:'и',
        27:'т',
        28:'ь',
        29:'б',
        30:'ю'
        }


words = text.split()


words = text.split()
sequences = []
for word in words:
    word_seq = []
    for char in word:
        n = list(dictionary.keys())[list(dictionary.values()).index(char)]
        word_seq.append(n)
    sequences.append(word_seq)

for i in sequences:
    for j in i:
        n = np.random.uniform(0, 1)
        tmp = 0
        if (n > 0.8):
            tmp = np.random.randint(-1, 1)
        print(dictionary[j + tmp], end='')
    print(end=' ')