import java.lang.Integer;
import java.lang.Object;
import java.lang.Float;

public record Rec(Object a, Object b) {}

public class SwitchInfered {
    public main(o) {
        return switch (o) {
        case Rec(a, b) -> a + b;
        case Integer i -> i;
        default -> 0;
        };
    }
}