# -*- coding: utf-8 -*-
"""
Created on Fri Oct  1 10:42:13 2021

@author: Joschka
"""
import numpy as np


def main():
    wire_width = 0.568
    r_in = 45.92 + wire_width/2
    d_in = r_in * 2
    r_2 = r_in + wire_width
    r_3 = r_2 + wire_width
    r = r_in + 4*wire_width
    res = 2*r

    print(res)




if __name__ == '__main__':
    main()