import itertools
 
s = [  0,   1,   2,   3,   4,   5,   6,   7,   8,   9,  10,  11,  12,
       13,  14,  15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,
       26,  27,  28,  29,  30,  31,  32,  33,  34,  35,  36,  37,  38,
       39,  40,  41,  42,  43,  44,  45,  46,  47,  48,  49,  50]
 
def variate_from_id(l, id, n=4):
    combination = []
    id -= 1
    size = len(s)
    for _ in range(n):
        combination.append(l[id % size])
        id //= size
    return tuple(reversed(combination))
 
def variate4(l):
    yield from itertools.product(*([l] * 4))
 
print(variate_from_id(s, 4856))
 
j = 0
for i in variate4(s):
    j = j + 1
    if j == 4856:
        print(''.join(str(i)))
        break

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