c-gcc, 67 bytes

Result

AC

Duration

875ms

Code [DL]

a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}

stdin

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   K                                              

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   k!!!!!!!!!u

stderr

/tmp/code.c:1:1: warning: data definition has no type or storage class
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
 ^
/tmp/code.c:1:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
/tmp/code.c:1:3: warning: type defaults to 'int' in declaration of 'c' [-Wimplicit-int]
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
   ^
/tmp/code.c:1:9: warning: return type defaults to 'int' [-Wimplicit-int]
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
         ^~~~
/tmp/code.c: In function 'main':
/tmp/code.c:1:9: warning: type of 'i' defaults to 'int' [-Wimplicit-int]
/tmp/code.c:1:22: warning: implicit declaration of function 'putchar' [-Wimplicit-function-declaration]
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
                      ^~~~~~~
/tmp/code.c:1:38: warning: implicit declaration of function 'getchar' [-Wimplicit-function-declaration]
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
                                      ^~~~~~~
/tmp/code.c:1:38: note: 'getchar' is defined in header '<stdio.h>'; did you forget to '#include <stdio.h>'?
+#include <stdio.h>
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
                                      ^~~~~~~
/tmp/code.c:1:49: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
 a,c[99];main(i){for(;putchar(a=c[i]|=getchar()|a&1)-117;i=i%51+1);}
                                                ~^~

strace