#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
return ((value & 0x000000FF) << 24) |
((value & 0x0000FF00) << 8 ) |
((value & 0x00FF0000) >> 8 ) |
((value & 0xFF000000) >> 24);
// return 0;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}