#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
uint32_t a = value & 0xFF;
uint32_t b = (value & 0xFF00) >> 8;
uint32_t c = (value & 0xFF0000) >> 16;
uint32_t d = (value & 0xFF000000) >> 24;
return (a << 24) | (b << 16) | (c << 8) | d;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}