import io:*
import poset:*



fun main():int {
    println("i depends on i+1")
    var int_poset = poset<int>()
    for (var i = 0; i < 10; i++;)
        int_poset.add_relationship(i, i+1)
    int_poset.get_sorted().for_each(fun(i: int) {
        print(i)
        print(" ")
    })
    println()

    println("i depends on i-1")
    int_poset = poset<int>()
    for (var i = 0; i < 10; i++;)
        int_poset.add_relationship(i, i-1)
    int_poset.get_sorted().for_each(fun(i: int) {
        print(i)
        print(" ")
    })
    println()
    return 0
}