program main
    use,intrinsic :: iso_fortran_env
    implicit none
    integer(int32):: a,b
    read*, a,b
    if (mod(a,2) == 1 .and. mod(b,2) == 1) then
        print'(a)', 'Yes'
    else
        print'(a)', 'No'
    end if
end program main