int main(){ assert('⌉'=='⌉'); assert('⌋'=='⌋'); assert(''=='⦔'); assert('⌝'=='⌝'); assert('⌟'=='⌟'); assert('⌈'=='⌈'); assert('⌊'=='⌊'); assert('⌜'=='⌜'); assert('⌞'=='⌞'); return 0; }