{"problem":{"name":"Rectangle Detection","description":{"content":"Takahashi generated $10$ strings $S_1,S_2,\\dots,S_{10}$ as follows. *   First, let $S_i (1 \\le i \\le 10)=$ `..........` ($10$ `.`s in a row). *   Next, choose four integers $A$, $B$, $C$, and $D$ sat","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc269_b"},"statements":[{"statement_type":"Markdown","content":"Takahashi generated $10$ strings $S_1,S_2,\\dots,S_{10}$ as follows.\n\n*   First, let $S_i (1 \\le i \\le 10)=$ `..........` ($10$ `.`s in a row).\n*   Next, choose four integers $A$, $B$, $C$, and $D$ satisfying all of the following.\n    *   $1 \\le A \\le B \\le 10$.\n    *   $1 \\le C \\le D \\le 10$.\n*   Then, for every pair of integers $(i,j)$ satisfying all of the following, replace the $j$\\-th character of $S_i$ with `#`.\n    *   $A \\le i \\le B$.\n    *   $C \\le j \\le D$.\n\nYou are given $S_1,S_2,\\dots,S_{10}$ generated as above. Find the integers $A$, $B$, $C$, and $D$ Takahashi chose.  \nIt can be proved that such integers $A$, $B$, $C$, and $D$ uniquely exist (there is just one answer) under the Constraints.\n\n## Constraints\n\n*   $S_1,S_2,\\dots,S_{10}$ are strings, each of length $10$, that can be generated according to the Problem Statement.\n\n## Input\n\nThe input is given from Standard Input in the following format:\n\n$S_1$\n$S_2$\n$\\vdots$\n$S_{10}$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc269_b","tags":[],"sample_group":[["..........\n..........\n..........\n..........\n...######.\n...######.\n...######.\n...######.\n..........\n..........","5 8\n4 9\n\nHere, Takahashi chose $A=5$, $B=8$, $C=4$, $D=9$.  \nThis choice generates $10$ strings $S_1,S_2,\\dots,S_{10}$, each of length $10$, where the $4$\\-th through $9$\\-th characters of $S_5,S_6,S_7,S_8$ are `#`, and the other characters are `.`.  \nThese are equal to the strings given in the input."],["..........\n..#.......\n..........\n..........\n..........\n..........\n..........\n..........\n..........\n..........","2 2\n3 3"],["##########\n##########\n##########\n##########\n##########\n##########\n##########\n##########\n##########\n##########","1 10\n1 10"]],"created_at":"2026-03-03 11:01:14"}}