#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
uint32_t result = 0;
//1. Extract first byte
result |= (value & 0xFF) << 24;
//2. Extract second byte
result |= (value & 0xFF00) << 8;
//3. Extract third byte
result |= (value & 0xFF0000) >> 8;
//4. Extract fourth byte
result |= (value & 0xFF000000) >> 24;
return result;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}