Can not cut paste data after repeat values of one column.

Hi,
I have data like below:

1	10
2	20
3	30
4	40
5	50
6	60
1	70
2	80
3	90
4	100
5	110
6	120
1	10
2	20
3	30
4	40
5	50
6	60
1	70
2	80
3	90
4	100
5	110
6	120
1	10
2	20
3	30
4	40
5	50
6	60
1	70
2	80
3	90
4	100
5	110
6	120

I want them to separate and bring in the next column based on when the pattern is being repeated in the first column, arranged data has to look something like below:

1	10	1	70	1	10	1	70	1	10	1	70
2	20	2	80	2	20	2	80	2	20	2	80
3	30	3	90	3	30	3	90	3	30	3	90
4	40	4	100	4	40	4	100	4	40	4	100
5	50	5	110	5	50	5	110	5	50	5	110
6	60	6	120	6	60	6	120	6	60	6	120

I have been trying with awk, but problems keep on recurring. Need help.

Show your awk attempts and non-satisfying results.