#!/usr/bin/env python3

def nth_con(x):
    # 212 114 116 118
    if not x % 3:
        n = 1
        d = 0
    else:
        n = x % 3
        d = 1
    for m in range(2 * (x // 3), 2, -2):
        n, d = 2*m*n + 2*d + n, m*n + n + d
    return 8*n + 3*d, 2*n + d + n

if __name__ == '__main__':
    print(sum(map(int, list(str(nth_con(100)[0])))))