Thanks for the reply.My input is a 4 bit number i.e 0001,0010,0011 etc till count ten.The 74210 code goes something like this,11000,00011,00101,00110,01001,01010,01100,10001,10010 and 10100(these correspond to P7,P4,P2,P1,P0).It has got two 1's for parity checking or error detection.I have...