please using while and len

Center-aligned bars (cab.py) Enter bar string: 355399271122 Enter bar string: 13155371 + ------------------ + + ------------------ + #### ######## T################## ######### ## #### | This one is more difficult than the first two, so don't start with this! cab.py Should accept a string of digits as input. However, the way that the program uses the numbers should differ slightly from Lab.py and rab.py. In cab.py), each pair of numbers is used to produce the output on a given row. the bars should "start" from the center of the 20-character-wide box, and the input string specifies how much they should jut-out to the left and to the right. For instance, look at the first example in the table to the right. In the first row, the bar has three # to the left of center, and five # characters to the right of center. This is specified by the 35 in the input string. The third and fourth characters, 53), specifies 5 to the left and three to the right ######## + ----- ----------- --+ + -------- ---------- + Center-aligned bars (cab.py) Enter bar string: 355399271122 Enter bar string: 13155371 + ------------------ + + ------------------ + #### ######## T################## ######### ## #### | This one is more difficult than the first two, so don't start with this! cab.py Should accept a string of digits as input. However, the way that the program uses the numbers should differ slightly from Lab.py and rab.py. In cab.py), each pair of numbers is used to produce the output on a given row. the bars should "start" from the center of the 20-character-wide box, and the input string specifies how much they should jut-out to the left and to the right. For instance, look at the first example in the table to the right. In the first row, the bar has three # to the left of center, and five # characters to the right of center. This is specified by the 35 in the input string. The third and fourth characters, 53), specifies 5 to the left and three to the right ######## + ----- ----------- --+ + -------- ---------- +