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