number is 7
b[ 1 ] is 1
b[ 2 ] is 2
b[ 3 ] is 3
b[ 4 ] is 4
b[ 5 ] is 5
b[ 6 ] is 6
b[ 7 ] is 7
b[ 8 ] is 8
b[ 9 ] is 9
b[ 10 ] is 10