#include<stdio.h>
int main()
{
char ch;
ch = getchar();
if(iscntrl(ch))
{
printf("k");
}
else
{
printf("jjjj");
}
fflush(stdin);
getchar();
return 0;
}
int main()
{
char ch;
ch = getchar();
if(iscntrl(ch))
{
printf("k");
}
else
{
printf("jjjj");
}
fflush(stdin);
getchar();
return 0;
}
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