{"raw_statement":[{"iden":"problem statement","content":"In AtCoder city, there are five antennas standing in a straight line. They are called Antenna $A, B, C, D$ and $E$ from west to east, and their coordinates are $a, b, c, d$ and $e$, respectively.  \nTwo antennas can communicate directly if the distance between them is $k$ or less, and they cannot if the distance is greater than $k$.  \nDetermine if there exists a pair of antennas that cannot communicate **directly**.  \nHere, assume that the distance between two antennas at coordinates $p$ and $q$ ($p < q$) is $q - p$."},{"iden":"constraints","content":"*   $a, b, c, d, e$ and $k$ are integers between $0$ and $123$ (inclusive).\n*   $a < b < c < d < e$"},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$a$\n$b$\n$c$\n$d$\n$e$\n$k$"},{"iden":"sample input 1","content":"1\n2\n4\n8\n9\n15"},{"iden":"sample output 1","content":"Yay!\n\nIn this case, there is no pair of antennas that cannot communicate directly, because:\n\n*   the distance between $A$ and $B$ is $2 - 1$ = $1$\n*   the distance between $A$ and $C$ is $4 - 1$ = $3$\n*   the distance between $A$ and $D$ is $8 - 1$ = $7$\n*   the distance between $A$ and $E$ is $9 - 1$ = $8$\n*   the distance between $B$ and $C$ is $4 - 2$ = $2$\n*   the distance between $B$ and $D$ is $8 - 2$ = $6$\n*   the distance between $B$ and $E$ is $9 - 2$ = $7$\n*   the distance between $C$ and $D$ is $8 - 4$ = $4$\n*   the distance between $C$ and $E$ is $9 - 4$ = $5$\n*   the distance between $D$ and $E$ is $9 - 8$ = $1$\n\nand none of them is greater than $15$. Thus, the correct output is `Yay!`."},{"iden":"sample input 2","content":"15\n18\n26\n35\n36\n18"},{"iden":"sample output 2","content":":(\n\nIn this case, the distance between antennas $A$ and $D$ is $35 - 15$ = $20$ and exceeds $18$, so they cannot communicate directly. Thus, the correct output is `:(`."}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}