c-gcc, 19 bytes

Result

WA

Code [DL]

main(){putc(48,1);}

stdin

10101001
00111100
00000001
00100110
00101011
10001000
10110110
01100111
00000000
10001100
01000010
00011010
10011001
00001010
11111101
11100100
01100101
11011110
00010111
01111000
01110100
11011001
00100100
00110111
01101001
10010100
11111110
01001110
10010010
11101101
00011100
00101101
01011110
01000101
11010010
01101001
10101101
11011000
11100111
10111110
00111010
01011011
01100110
10101011
00000011
00110011
00010101
00000110
01000010
00001111

stdout

stderr

/tmp/code.c:1:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
 main(){putc(48,1);}
 ^
/tmp/code.c: In function ‘main’:
/tmp/code.c:1:8: warning: implicit declaration of function ‘putc’ [-Wimplicit-function-declaration]
 main(){putc(48,1);}
        ^
/home/esolang/bin/c-gcc: line 6:    13 Done                    cat -
        14 Segmentation fault      (core dumped) | /tmp/code

strace