#include <stdio.h>
#include <stdint.h>
uint32_t convert_endian(uint32_t value) {
// printf("Input: %X \n", value);
uint32_t mask = 0xFF;
uint32_t output = 0;
uint32_t byte = 0;
for (int i = 0; i < 32; i = i + 8){
byte = (value >> i) & mask;
byte = (byte << 24 - i);
// printf("Byte %X \n", byte);
output |= byte;
}
// Write logic to swap bytes
// printf("Output: %X \n", output);
// printf("Output normal: %d", output);
return output;
}
int main() {
uint32_t val;
scanf("%u", &val);
printf("%u", convert_endian(val));
return 0;
}