how to plot node in particular range but x and y lim is 1000x1000

bs=4; 
area=1000; 
X_coord=rand(1,bs)*area  
Y_coord=rand(1,bs)*area 
if ((X_coord<=100)&(X_coord>=880))   
     X_coord=rand(1)*area 
end 
if ((Y_coord<=100)&(Y_coord>=880))  
 Y_coord=rand(1)*area 
end  
for i2=1:bs
plot(X_coord(i2),Y_coord(i2),':o','LineWidth',3,'MarkerEdgeColor','k','MarkerFaceColor',...[0.5,0.5,0.5],'MarkerSize',3)
text(X_coord(i2),Y_coord(i2),'BS')
hold on
end

In above coding i need some solution if X_coord and Y_coord value is less than 100 and gteater than 880 shown in 3 and 4 line of above code, then it will again calculate particular X_coord and Y_coord value for ploting