#include<iostream>#include<stdio.h>#include<string.h> using namespace std;char str[2][300];int cmp(char *a, char *b){ int r=1; for(;*a&&*b&&*a==*b;){ ++a,++b; } while(*b){ ++r; ++b; } return r;}void fun(){ char *pre=str[0], *cur=str[1], *tmp; int len, num, res=0; scanf("%d", &num); scanf("%s", pre); res += strlen(pre); for(;num>1; --num){ scanf("%s", cur); res += cmp(pre, cur); tmp = cur, cur = pre, pre=tmp; } printf("%dn", res);}int main(){ int tst=0, tn; scanf("%d", &tn); while(tst++ < tn){ fun(); if(tst != tn) printf("n"); } return 0;}
