let r()=List.map int_of_string(Str.split(Str.regexp" ")(read_line()))open Array;;match r()with[n;m;l]->(let($)s t=let a=make_matrix s t 0in for i=0to s-1do let x=of_list(r())in for j=0to t-1do a.(i).(j)<-x.(j)done done;a in let a=n$m and b=m$l in for i=0to n-1do for j=0to l-1do let c=ref 0in for k=0to m-1do c:=!c+a.(i).(k)*b.(k).(j)done;Printf.printf(if j=0then"%d"else" %d")!c done;print_newline()done)|_->()