gen	allele	freq	position
0	0	1	1
0	1	0	1
1	0	1	1
1	1	0	1
2	0	0.99999	1
2	1	1e-05	1
3	0	0.9999899998	1
3	1	1.00002e-05	1
4	0	0.9999899998	1
4	1	1.00002e-05	1
5	0	0.9999600016	1
5	1	3.99984e-05	1
6	0	0.9999599992	1
6	1	4.00008e-05	1
7	0	0.9999599984	1
7	1	4.00016e-05	1
8	0	0.9999500015	1
8	1	4.99985e-05	1
9	0	0.99993	1
9	1	7e-05	1
10	0	0.9999199984	1
10	1	8.00016e-05	1