 and the second subscript is used as a column (horizontal) index. The Rec. ITU-T H.264 (01/2012) indexing order is reversed when using square parentheses rather than subscripts for indexing. Thus, an element of a matrix S at horizontal position X and vertical position y may be denoted either as s[ X, y ] or as Syx. Binary notation is indicated by enclosing the string of bit values by single quote marks. For example, '01000001' represents an eight-bit string having only its second and its last bits (counted from the most to the least significant bit) equal to 1. Hexadecimal notation, indicated by prefixing the hexadecimal number by "Ox", may be used instead of binary notation when the number of bits is an integer multiple of 4. For example, 0x41 represents an eight-bit string having only its second and its last bits (counted from the most to the least significant bit) equal to 1. Numerical values not enclosed in single quotes and not prefixed by "Ox" are decimal values. A value equal to 0 represents a FALSE condition in a test statement. The value TRUE is represented by any value different from zero. Text description of logical operations In the text, a statement of logical operations as would be described in pseudo-code as if( condition 0 ) statement 0 else if ( condition 1) statement 1 else /* informative remark on remaining condition */ statement n may be described in the following manner: as follows / the following applies: If condition 0, statement 0 Otherwise, if condition 1, statement 1 Otherwise (informative remark on remaining condition), statement n Each "If Otherwise, if Otherwise, statement in the text is introduced with " as follows" or " the following applies" immediately followed by "If The last condition of the "If Otherwise, if Otherwise, " is always "Otherwise, ...". " Interleaved "If Otherwise, if Otherwise, " statements can be identified by matching " as follows" or " the following applies" with the ending "Otherwise, ...". " In the text, a statement of logical operations as would be described 