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