#!/usr/bin/python3

import math
import random

def dianysmata(k,n):
	da=[]
	for _ in range(k):
		d=[random.uniform(1,100) for _ in range (n)]
		da.append(d)
	return da

def printd(da):
	print(da)

def metro(da):
	for i in range (len(da)):
		metro=math.sqrt(sum (x**2 for x in da[i]))
		print(f"|v{i+1}|={metro}")


def main():
	n=int(input("plithos stoixeiwn: "))
	k=int(input("plithos dianismatwn: "))

	if k>=n:
		exit(1)

	v=dianysmata(k,n)
	printd(v)
	metro(v)

if __name__=="__main__":
	main()