Evaluation of 1 st operator
if ( k == 1 ) : NEW_LINE INDENT if ( operators [ k - 1 ] == ' + ' ) : NEW_LINE INDENT ans += int ( operands [ k - 1 ] ) + int ( operands [ k ] ) ; NEW_LINE DEDENT if ( operators [ k - 1 ] == ' - ' ) : NEW_LINE INDENT ans += int ( operands [ k - 1 ] ) - int ( operands [ k ] ) ; NEW_LINE DEDENT DEDENT