#!/usr/bin/env python

import sys,os

lines=sys.stdin.readlines()
cols={}

start=0
ende=len(lines)

if "-s" in sys.argv:
    start=int(sys.argv[sys.argv.index("-s")+1])

if "-e" in sys.argv:
    ende=int(sys.argv[sys.argv.index("-e")+1])

       
for l in lines[start:ende]:
    tok=l.split()
    cnt=0
    for t in tok:
        if cols.has_key(cnt):
            cols[cnt]+=[t]
        else:
            cols[cnt]=[t]
        cnt+=1


for l in lines:        
    print l.rstrip()

for c in cols:
    try:
        cols[c]=map(lambda x: float(x),cols[c])
        print "%1.4f" % (sum(cols[c])/len(cols[c])),
    except:
        print "AVG",