 5c 0a
 5c 0a
 5c 0a
 5c 0a
 5c 0a
 5c 0a
gawk: cmd. line:2: warning: invalid `\u' escape sequence
gawk: cmd. line:3: warning: invalid `\u' escape sequence
 3f 0a 3f 0a
gawk: cmd. line:2: warning: invalid `\u' escape sequence
right: literal ? is literal
gawk: cmd. line:2: warning: invalid `\u' escape sequence
gawk: cmd. line:5: warning: invalid `\u' escape sequence
gawk: cmd. line:8: warning: invalid `\u' escape sequence
1 == 1
gawk: cmd. line:3: warning: invalid `\u' escape sequence
1 == 1
0 == 0
gawk: cmd. line:6: warning: invalid `\u' escape sequence
0 == 0
0 == 0
gawk: cmd. line:9: warning: invalid `\u' escape sequence
0 == 0
