# Decode

from decimal import Decimal

file = open('test.txt', 'r')

ar = []
n = 30

for i in range(n):
    ar.append([])
    for x in range(n):
        ar[i].append([])
        for z in range(n):
            line = file.readline()
            if not line:
                break
            line = str(line).replace(' ', '').replace('\n', '')
            line = float(Decimal(line))
            ar[i][x].append(line)

print(ar)