#include <stdio.h>

int main() {

int n;
printf("enter values of n: ");
if (scanf("%d\n", &n) != 1) {
    printf("invalid");
} else {
int sum = 1;
for(int i = 1; i <= n; i++) {
    sum = n * i;
    //printf("%d", sum);
}
    printf("%d", sum);
}
    return 0;
}

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