operator, loop, Lec.13	operator, loop,	operator, expression, Lec.16	data, type, Lec.10	data, type,	variable, data,	variable, function,	function, variable,
loop, operator,	operator, expression,	language, operator,	data, type, Lec.11	data, variable,	variable, declaration,	function, variable,	function, variable, Lec.20, Lec.25
loop, statement, Lec.14, Lec.17	statement, loop, Lec.18	language, statement,	language, problem,	language, data,	memory, variable,	memory, function,	function, memory,
statement, compiler,	language, statement,	language, problem,	language, problem,	memory, scanf,	memory, pointer,	pointer, memory,	pointer, memory,
file, compiler,	compiler, file,	language, compiler, Lec.9	language, scanf,	scanf, language,	memory, pointer,	pointer, memory,	pointer, memory, Lec.23
file, compiler,	file, compiler,	language, printf,	scanf, string,	scanf, string,	pointer, memory,	pointer, memory,	pointer, array,
file, source, Lec.12	file, output,	file, output,	string, character, Lec.22	string, character,	string, character,	array, pointer,	array, pointer,
file, output,	file, output,	file, string, Lec.15	string, character,	string, character,	string, character,	array, string, Lec.21,	array, pointer, Lec.19 Lec.24