x = [ 3 , 4 , 9 , 6 , 2 ]

sum = 0
x.length.times { |i|
	sum += x[ i ]
}
average = sum / x.length

printf( "平均値は%dで，平均値より大きい値は，\n" , average )
x.length.times { |i|
	if x[ i ] > average then
		printf( "x[ %d ] = %d\n" , i , x[ i ] )
	end
}
printf( "です\n" );