A = {{1 2; 3 4}, {5 6;7 8}, {9 0; 1 2}; {3 4; 5 6}, {7 8; 9 0}, {11 22; 33 44}};
B = [2,3];
arrayfun(@(x) A{1,x}{2,2}, B)
cellfun(@(c)c{2,2}, A(1,B))
QSA9IHt7MSAyOyAzIDR9LCB7NSA2OzcgOH0sIHs5IDA7IDEgMn07IHszIDQ7IDUgNn0sIHs3IDg7IDkgMH0sIHsxMSAyMjsgMzMgNDR9fTsKQiA9IFsyLDNdOwoKYXJyYXlmdW4oQCh4KSBBezEseH17MiwyfSwgQikKCmNlbGxmdW4oQChjKWN7MiwyfSwgQSgxLEIpKQo=