ll t,a[6],d,e;mint s[4d4][600],r;{rd(t,a(3),d,e);a[3..5]=-a[0..];*s[2d4]=1;s[(20..3d4)+a[0...5]][1....t]+=s[20..][0....];r+=s[2d4+(d..e)][t];wt(r);}