public class LCG {

    public LCG(long _a, long _c, long _m, long seed) {
    this.a = _a;
    this.c = _c;
    this.m = _m;
     }
    public long next() {

    	long x =(this.a*seed+this.m)%this.c;
	seed(x);
        return x;
    }
    public void seed(long seed) {
	seed = this.seed;

 }
}