In a certain code language, '254' means 'You are intelligent', '153' means 'Nikhil is intelligent', '398' means 'Naina and Nikhil', then what is the code for 'is' in the same code language?
एक निश्चित कूट भाषा में, '254' का अर्थ 'You are intelligent' है, '153' का अर्थ 'Nikhil is intelligent' है, '398' का अर्थ 'Naina and Nikhil' है तो उसी कूट भाषा में 'is' का कूट क्या होगा?