37 lines
755 B
Java
37 lines
755 B
Java
package chelper;
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import java.math.BigInteger;
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import io.InputReader;
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import io.OutputWriter;
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public class TaskB {
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public void solve(int testNumber, InputReader in, OutputWriter out) {
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String s = in.nextString();
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long n = Long.parseLong(s.substring(0, s.length() - 1)) - 1;
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int p = s.charAt(s.length() - 1);
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BigInteger ans = BigInteger.valueOf(n / 4).multiply(BigInteger.valueOf(16));
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long c = 0;
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switch (p) {
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case 'a': c += 4; break;
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case 'b': c += 5; break;
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case 'c': c += 6; break;
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case 'd': c += 3; break;
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case 'e': c += 2; break;
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case 'f': c += 1; break;
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}
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if ((n % 4) % 2 == 1) {
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c += 7;
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}
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ans = ans.add(BigInteger.valueOf(c));
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out.println(ans);
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}
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}
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