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