#!/usr/bin/perl
@a=split/\
./,<>;@b=split``,$a[1];@c=split``,$a[0];for($i=0;$i<length$a[0];$i++){$_.=($c[$i]!=0)?$c[$i]."0"x
((length$a[0])-$i-1)."+":"";}for($i=1;$i<=length$a[1];$i++){$_.=($b[$i-1]!=0)?"0."."0"x
($i-1).$b[$i-1]."+":"";}chop;($_=="")?print"0 ":print;
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