1) x=1,2,3,4,5,6,7,8,9....2) x=1,2,3,4,5,6,7,8,9....3) x=1,2,4,5,7,8,10,11,13....4) x=1,2,3,4,5,6,7,8,9....
1) x=1,2,3,4,5,6,7,8,9....
2) x=1,2,3,4,5,6,7,8,9....
3) x=1,2,4,5,7,8,10,11,13....
4) x=1,2,3,4,5,6,7,8,9....