module block_nonblock(output logic x,x1,y,y1,input logic a,b,c);

always@* begin : BLOCKING
    x1 = a & b;
    x  = x1 & c;
end

always@* begin : NONBLOCKING
    y1 <= a & b;
    y  <= y1 & c;
end

endmodule

always@* begin : BLOCKING
    x1 = a & b;
    x  = x1 & c;
end

always@* begin : NON BLOCKING
    x1 <= a & b;
    x  <= x1 & c;
end