int main(){
	assert('∠'=='∠');
	assert('∡'=='∡');
	assert('ℶ'=='ℶ');
	assert('‵'=='‵');
	assert('∁'=='∁');
	assert('ℸ'=='ℸ');
	assert('ℓ'=='ℓ');
	assert('∅'=='∅');
	assert('ℷ'=='ℷ');
	assert('ℑ'=='ℑ');
	assert('ı'=='ı');
	assert('∄'=='∄');
	assert('Ⓢ'=='Ⓢ');
	assert('ℏ'=='ℏ');
	assert('ℜ'=='ℜ');
	assert('﹨'=='&sbsol;');
	assert('′'=='&vprime;');
	assert('℘'=='℘');
	return 0;
}