kashapovd

#!/bin/bash

#first, the most simply method to get a random number is reading embedded $RANDOM variable (range 0...32767)
#like this:
echo $RANDOM

#letters only
cat /dev/random | tr -dc 'a-zA-Z' | fold -w $(shuf -i 1-20 -n 1) | head -1
#                symbol set /                           \ number of chars (range)
#letters with numbers

kashapovd

#!/usr/bin/env python
# usage: ./mmi.py -n [NUM] -m [MOD]

import sys
import argparse
import math

def gcdExtended(a, b):  
    if b == 0:
        return a, 1, 0