#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
uint32_t temp=value;
uint8_t t1= (temp >>0 )& 0xFF;
uint8_t t2= (temp >>8)&0xFF;
uint8_t t3= (temp>>16)&0xFF;
uint8_t t4=(temp>>24)&0xFF;
temp= (temp &~(0xFF<<0) | (t4<<0) );
temp= (temp &~(0xFF<<8) | (t3<<8)) ;
temp= (temp &~(0xFF<<16) |(t2<<16)) ;
temp= (temp &~(0xFF<<24) |(t1<<24));
return temp;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}