def r(n,a):o=n*8;return map(int,(a[o+1],a[o+3],a[o+5],a[o+7])) def m(r,c):return map(max,c,(r[0]+r[2],r[1]+r[3])) def d(t):return [[""]*t[0]for _ in xrange(t[1])] def k(r,c,f): x=r[0] while x-r[0]