int main(){
int n;
while(1){
scanf("%d", &n);
printf("%d\n",sod(n));
}
return 0;
}
int main()
{
int t, mono[ 8 ], bi[ 8 ];
char n[ 21 ];
for( scanf( "%d", &t ); t--; )
{
int m = 0, b = 0;
scanf( "%s %s %s %s", n, n+4, n+8, n+12 );
for( int i = 0; i < 16; ++i )
if( i % 2 == 0 )
bi[ i >> 1 ] = n[ i ] - '0' << 1;
else
mono[ i >> 1 ] = n[ i ] - '0';
for( int i = 0; i < 8; ++i )
m += sod( mono[ i ] ), b += sod( bi[ i ] );
puts( ( m + b ) % 10? "Invalid" : "Valid" );
}
int main(void){
for(int i, j, n; scanf("%d %d", &i, &j) == 2; ){
double triv = 1e10;
for(int a = i; a <= j; ++a){
int x = sod(a);
if(x / (double) a < triv) n = a, triv = x / (double) a;
}
printf("%d\n", n);
}
return 0;
}
int main(void){
int t; scanf("%d", &t);
FORS(i, 0, 1, MAX) memonod[i] = memosod[i] = -1;
for(int a, b, k; t-- && scanf("%d %d %d", &a, &b, &k) == 3; ){
int start = ((a + k - 1) / k) * k;
long long int g = 0, h = 0;
++b;
FORS(i, start, k, b){
g += nod(i);
h += sod(i);
}
printf("%lld %lld\n", g, h);
}
int main(void){
clock_t ini = clock();
long long ans = 0;
list[ls++] = 1;
for(int base = 2; ; ++base){
int max_exp = int(ceil(63 * log(2) / log(base)));
if(max_exp == 4) break;
for(long long r = base * base, c = 2; c < max_exp; r *= base, ++c)
if(r > 99 && sod(r) == base){
printf("%lld = %d^%d\n", r, base, c);
list[ls++] = r;
}
}
std::sort(list, list + ls);
ans = list[29];
printf("Time spent: %.3lfs\n", ((double)(clock() - ini))/CLOCKS_PER_SEC);
printf("Answer: %lld\n", ans);
return 0;
}