#!/usr/bin/env python3

import sys
import yaml

def show_type(d):
	sys.stderr.write( 'foo {}, '.format( type( d.get('foo') ) ) )
	sys.stderr.write( 'bar {}\n'.format( type( d.get('bar') ) ) )

need_decode = lambda s: list( filter( lambda c: ord(c) >= 128, s ) ) 

my_decode = lambda s: s.decode('utf-8') if need_decode(s) else s

if __name__ == "__main__":
	#s = sys.stdin.read()
	s = sys.stdin.buffer.read()
	d = yaml.load(s)

	show_type(d)
	#d = dict( map( lambda kv: ( kv[0], kv[1].encode('utf-8') ), d.items() ) )
	show_type(d)

	foo = d.get('foo')
	bar = d.get('bar')

	d['hoge'] = foo + ' ' + bar
	d['fuga'] = 'foo={} bar={}'.format(foo, bar)
	d['guha'] = '(^_^)'.join( d.values() )
	
	#show_type(d)
	#d = dict( map( lambda kv: ( kv[0], my_decode(kv[1]) ), d.items() ) )
	#show_type(d)

	s = yaml.dump(d, default_flow_style=False, allow_unicode=True)
	#sys.stdout.write(s)
	sys.stdout.buffer.write(s)
# EOF