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#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int
main(void)
{
clock_t start = clock();
size_t sum = 0;
#if 0
int ch;
while ((ch = getc(stdin)) != EOF) {
sum += (unsigned char) ch;
}
#endif
#if 1
unsigned char buffer[1024];
size_t n;
while ((n = fread(buffer, 1, sizeof buffer, stdin)) > 0) {
for ( size_t z = 0; z != n; ++z ) {
sum += buffer[z];
}
}
#endif
clock_t end = clock();
printf("Result: %zu, Duration: %.3lf sec\n", sum, (double)(end - start) / CLOCKS_PER_SEC);
return EXIT_SUCCESS;
}
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