4 pairsof 3.65m(wm(long)=8 curtain of 3.6(w(long)-window wm2 pairs of 5.3m(wm(long)=4 curtains of 5.3m(wm(long)-window wm5 pairs of 2.5m(wm(long)=10 curtains of 2.2m (wm(long)- window w1 pairs of 1.8m(wm(long)=2 curtains of 1.8m(wm(long)-window w1 pairs of 2.5m(wm(long)=2 curtains of 2.2m(wm(long)-window w