#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// Write logic to swap bytes
uint32_t b0 = (value & 0x000000ff) << 24;
uint32_t b1 = (value & 0x0000ff00) << 8;
uint32_t b2 = (value & 0x00ff0000) >> 8;
uint32_t b3 = (value & 0xff000000) >> 24;
return b0|b1|b2|b3;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}