Difference between 135R13 and 145/80R13 ?

Hello people, and I have the possibility to get very cheaply to a set Uniroyal mature. Vehicle: Suzuki Swift 1.0i MA EZ: 14.01.1997 The matures which are mounted at the time are too old (<8 years). In the vehicle letter the size 135R13 is indicated, so should actually also 145/80R13 fit or ? Mounted are at the time 155/70R13. Who can bring light to confusion ?