def remove_nums(int_list):
    position=3-1
    idx=0
    len_list=(len(int_list))
    while len_list>0:
        idx=(position+idx)%len_list
        print(int_list.pop(idx))
        len_list-=1
nums=[10,20,30,40,50,60,70,80,90]
remove_nums(nums)
