begin 

    comment library 1;
    integer 
        i,
        j;
    i := j := 0;
    i :=
        if i = 0 then 

                if j = 0 then 
                    1
                else 
                    2
        else 
            3;
    if i = 1 then 
        if j = 0 then 
            j := 2
        else 
            j := 3
        else 
            j := 4;
    outreal(1, i);
    outreal(1, j)
end