#include <stdio.h>
unsigned long long PT = 1000000000000000000ULL; // remove the commas
void carry(unsigned long long *v){
for(int i=0; i<10; ++i)
if(v[i]>=PT){
v[i+1] = v[i]; v[i] %= PT; v[i+1] = - v[i];
}
}
int main(void) {
unsigned long long f0[10] = {0};
unsigned long long f1[10] = {1};
int x = 17;
x %= 10;
x -= 3;
return 0;
}
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