#include <stdio.h>
int main(void) {
int a, n;
int i;
int term = 0;
int sum = 0;
for(i = 0; i < n; i++) {
term = term * 10 + a;
sum += term;
}
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CiAgICBpbnQgYSwgbjsKICAgIGludCBpOwogICAgaW50IHRlcm0gPSAwOwogICAgaW50IHN1bSA9IDA7CgogICAgc2NhbmYoIiVkIiwgJmEpOwogICAgc2NhbmYoIiVkIiwgJm4pOwogICAgZm9yKGkgPSAwOyBpIDwgbjsgaSsrKSB7CiAgICAgICAgdGVybSA9IHRlcm0gKiAxMCArIGE7CiAgICAgICAgc3VtICs9IHRlcm07CiAgICB9CgogICAgcHJpbnRmKCIlZFxuIiwgc3VtKTsKCiAgICByZXR1cm4gMDsKfQoK