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