#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
char *ptr = (char*)&value;
for(int i =0; i<2; i++){
char temp = *(ptr+i);
*(ptr+i) = *(ptr+3-i);
*(ptr+3-i) = temp;
}
return value;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}