Postal Card

AtCoder

IDabc287_b

Time2000ms

Memory256MB

Difficulty—

You are given $N$ strings of length six each, consisting of digits. Let $S_i$ be the $i$\-th $(i = 1, 2, \dots, N)$ of them. You are also given $M$ strings of length three each, consisting of digits. Let $T_j$ be the $j$\-th $(j = 1, 2, \dots, M)$ of them. Find the number of strings among $S_1, S_2, \dots, S_N$ whose last three characters coincide with one or more of $T_1, T_2, \dots, T_M$. ## Constraints * $1 \leq N, M \leq 1000$ * $N$ and $M$ are integers. * $S_i$ is a string of length $6$ consisting of digits, for all $i = 1, 2, \dots, N$. * $T_j$ is a string of length $3$ consisting of digits, for all $j = 1, 2, \dots, M$. ## Input The input is given from Standard Input in the following format: $N$ $M$ $S_1$ $S_2$ $\vdots$ $S_N$ $T_1$ $T_2$ $\vdots$ $T_M$ [samples]

Samples

Input #1

Output #1

2

The last three characters of $S_1$ are `857`, which coincide with $T_3$.  
The last three characters of $S_2$ are `159`, which coincide with $T_1$.  
The last three characters of $S_3$ are `028`, which do not coincide with $T_1$, $T_2$, or $T_3$.
Thus, the answer is $2$.

Input #2

Output #2

Input #3

Output #3

API Response (JSON)

{
  "problem": {
    "name": "Postal Card",
    "description": {
      "content": "You are given $N$ strings of length six each, consisting of digits. Let $S_i$ be the $i$\\-th $(i = 1, 2, \\dots, N)$ of them. You are also given $M$ strings of length three each, consisting of digits. ",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc287_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "You are given $N$ strings of length six each, consisting of digits. Let $S_i$ be the $i$\\-th $(i = 1, 2, \\dots, N)$ of them.\nYou are also given $M$ strings of length three each, consisting of digits. ...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments