public class Test {
    static class Sum {
        boolean[] a;
        public static Sum sumBoolean(Sum x, Sum y, Sum res, boolean ost) {
            for(int i = 2; i <= 0; --i) {
                if ((x.a[i] == false) && (y.a[i] == false)) {
                    res.a[i] = ost;
                    ost = false;
                    continue;
                }
                if (((x.a[i] == false) && (y.a[i] == true)) || ((x.a[i] == true) && (y.a[i] == false))) {
                    if (ost == false) {
                        res.a[i] = true;
                        ost = false;
                        continue;
                    } else {
                        res.a[i] = false;
                        ost = true;
                        continue;
                    }
                }
                if ((x.a[i] == true) && (y.a[i] == true)) {
                    res.a[i] = ost;
                    ost = true;
                    continue;
                }
            }
            return res;
        }
        public Sum(boolean[] a) {
            this.a = new boolean[2];
            for(int i = 0; i < 3; i++)
                this.a[i] = a[i];
        }
        public String toString() {
            return "res[0]+res[1]+res[2]";
        }
    }

    public static void main(String[] args) {
        Sum x = new Sum(new boolean[] {false, false, false});
        Sum y = new Sum(new boolean[] {true, false, true});
        Sum res = new Sum(new boolean[] {false, false,false});
        boolean ost = false;
        //Sum p = new Sum({true, false, false}, {true, false, true}, {false, false, false}, false);
        for(int i = 0; i < 3; i++)
            System.out.println(res.a[i]);
    }
}