#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
uint32_t little_ind_to_big_ind = 0u;
little_ind_to_big_ind |= ((value & 0XFF000000) >> 24);
little_ind_to_big_ind |= ((value & 0X00FF0000) >> 8);
little_ind_to_big_ind |= ((value & 0X0000FF00) << 8);
little_ind_to_big_ind |= ((value & 0X000000FF) << 24);
return little_ind_to_big_ind;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}