#include <stdio.h>
#define S(x) #x
#define T(x) S(x)
#define F(X) int main(){const char s[] = "#include <stdio.h>\n#define S(x) #x\n#define T(x) S(x)\n#define F(X) " X"\nF(T(F(X)))";for(int i=0;;i++){char c=fgetc(stdin);if(c!=s[i]){printf("%d\n\"%c\"\n\"%c\"",i,s[i],c);return 0;}}}
F(T(F(X)))