ii  linux-headers-3.13.0-74                                     3.13.0-74.118                                       all          Header files related to Linux kernel version 3.13.0
ii  linux-headers-3.13.0-74-generic                             3.13.0-74.118                                       amd64        Linux kernel headers for version 3.13.0 on 64 bit x86 SMP
ii  linux-headers-generic                                       3.13.0.74.80                                        amd64        Generic Linux kernel headers