Index of message word used in the round in the left sequence Round 1(t:0 – 15) 01234567891011121313 1415 Round 2(t:16 – 31) 741311061531209521414 118 Round 3(t:32 – 47) 3101449158127061311512 Round 4(t:48 – 63) 1911100812413371514562 Round 5(t:64 – 79) 4059712210141381161513 Permutation details of message words for left sequence