“…. 59 we calculate the perfect squares: 0, 1, 4, 9 and so on.Further, we define the rests from subtraction from each number from this row the summand m = 59.According to the residual cyclical quadratic chain code, it will ensure the random nature of the distribution of the windows on the rotor disk.Having carried out the mentioned procedure, we can define that the windows on the rotor disk must be at 0,1,3,4,5,7,9,12,16,17,19,20,21,22,25,26,27,28,29,35,36, 41, 45, 46, 48, 49, 51, 53 and 57 intervals (Figure7). Therefore, the windows number on the rotor is equal to 15.Let us introduce a notation…”